\n \n {post.feature_image && (\n \n \n \n )}\n \n \n {post.title}\n \n on {post.published_at_pretty} / by{` `}\n {post.primary_author.name}\n \n \n\n {/* The main post content */}\n \n \n \n \n \n \n
\n \n View More Blogs\n \n \n \n \n );\n};\n\nexport default PostContent;\n","import React, { ReactElement } from 'react';\nimport PropTypes from 'prop-types';\nimport { graphql } from 'gatsby';\nimport { Helmet } from 'react-helmet';\nimport { Layout } from '../components/common';\nimport { MetaData } from '../components/common/meta';\nimport { IPost } from '../utils/entities';\nimport { Container } from 'react-bootstrap';\nimport PostContent from '../components/postContent';\n\n/**\n* Single post view (/:slug)\n*\n* This file renders a single post and loads all the content.\n*\n*/\n\ninterface IPostPage {\n data: {\n ghostPost: IPost;\n allGhostPost: {\n edges: {\n node: IPost;\n }[];\n };\n };\n location: {\n pathname: string;\n };\n pageContext: {\n tags: string[];\n };\n }\n\nconst Post = ({ data, location }: IPostPage): ReactElement => {\n const post = data.ghostPost;\n\n return (\n <>\n \n \n \n \n \n \n \n \n \n \n );\n};\n\nPost.propTypes = {\n data: PropTypes.shape({\n ghostPost: PropTypes.shape({\n codeinjection_styles: PropTypes.object,\n title: PropTypes.string.isRequired,\n html: PropTypes.string.isRequired,\n feature_image: PropTypes.string,\n }).isRequired,\n }).isRequired,\n location: PropTypes.object.isRequired,\n};\n\nexport default Post;\n\nexport const postQuery = graphql`\n query($slug: String!, $tags: [String!]) {\n ghostPost(slug: { eq: $slug }) {\n ...GhostPostFields\n }\n allGhostPost(\n sort: { fields: published_at, order: DESC }\n filter: { tags: { elemMatch: { slug: { in: $tags } } } }\n limit: 3\n ) {\n edges {\n node {\n ...GhostPostFields\n }\n }\n }\n }\n`;\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n'use strict';\n\nvar stringifyPrimitive = function stringifyPrimitive(v) {\n switch (typeof v) {\n case 'string':\n return v;\n\n case 'boolean':\n return v ? 'true' : 'false';\n\n case 'number':\n return isFinite(v) ? v : '';\n\n default:\n return '';\n }\n};\n\nmodule.exports = function (obj, sep, eq, name) {\n sep = sep || '&';\n eq = eq || '=';\n\n if (obj === null) {\n obj = undefined;\n }\n\n if (typeof obj === 'object') {\n return map(objectKeys(obj), function (k) {\n var ks = encodeURIComponent(stringifyPrimitive(k)) + eq;\n\n if (isArray(obj[k])) {\n return map(obj[k], function (v) {\n return ks + encodeURIComponent(stringifyPrimitive(v));\n }).join(sep);\n } else {\n return ks + encodeURIComponent(stringifyPrimitive(obj[k]));\n }\n }).join(sep);\n }\n\n if (!name) return '';\n return encodeURIComponent(stringifyPrimitive(name)) + eq + encodeURIComponent(stringifyPrimitive(obj));\n};\n\nvar isArray = Array.isArray || function (xs) {\n return Object.prototype.toString.call(xs) === '[object Array]';\n};\n\nfunction map(xs, f) {\n if (xs.map) return xs.map(f);\n var res = [];\n\n for (var i = 0; i < xs.length; i++) {\n res.push(f(xs[i], i));\n }\n\n return res;\n}\n\nvar objectKeys = Object.keys || function (obj) {\n var res = [];\n\n for (var key in obj) {\n if (Object.prototype.hasOwnProperty.call(obj, key)) res.push(key);\n }\n\n return res;\n};","'use strict';\n\nfunction _interopDefault(ex) {\n return ex && typeof ex === 'object' && 'default' in ex ? ex['default'] : ex;\n}\n\nvar React = require('react');\n\nvar React__default = _interopDefault(React);\n\nfunction _defineProperty(obj, key, value) {\n if (key in obj) {\n Object.defineProperty(obj, key, {\n value: value,\n enumerable: true,\n configurable: true,\n writable: true\n });\n } else {\n obj[key] = value;\n }\n\n return obj;\n}\n\nfunction _inheritsLoose(subClass, superClass) {\n subClass.prototype = Object.create(superClass.prototype);\n subClass.prototype.constructor = subClass;\n subClass.__proto__ = superClass;\n}\n\nvar canUseDOM = !!(typeof window !== 'undefined' && window.document && window.document.createElement);\n\nfunction withSideEffect(reducePropsToState, handleStateChangeOnClient, mapStateOnServer) {\n if (typeof reducePropsToState !== 'function') {\n throw new Error('Expected reducePropsToState to be a function.');\n }\n\n if (typeof handleStateChangeOnClient !== 'function') {\n throw new Error('Expected handleStateChangeOnClient to be a function.');\n }\n\n if (typeof mapStateOnServer !== 'undefined' && typeof mapStateOnServer !== 'function') {\n throw new Error('Expected mapStateOnServer to either be undefined or a function.');\n }\n\n function getDisplayName(WrappedComponent) {\n return WrappedComponent.displayName || WrappedComponent.name || 'Component';\n }\n\n return function wrap(WrappedComponent) {\n if (typeof WrappedComponent !== 'function') {\n throw new Error('Expected WrappedComponent to be a React component.');\n }\n\n var mountedInstances = [];\n var state;\n\n function emitChange() {\n state = reducePropsToState(mountedInstances.map(function (instance) {\n return instance.props;\n }));\n\n if (SideEffect.canUseDOM) {\n handleStateChangeOnClient(state);\n } else if (mapStateOnServer) {\n state = mapStateOnServer(state);\n }\n }\n\n var SideEffect = /*#__PURE__*/function (_PureComponent) {\n _inheritsLoose(SideEffect, _PureComponent);\n\n function SideEffect() {\n return _PureComponent.apply(this, arguments) || this;\n } // Try to use displayName of wrapped component\n // Expose canUseDOM so tests can monkeypatch it\n\n\n SideEffect.peek = function peek() {\n return state;\n };\n\n SideEffect.rewind = function rewind() {\n if (SideEffect.canUseDOM) {\n throw new Error('You may only call rewind() on the server. Call peek() to read the current state.');\n }\n\n var recordedState = state;\n state = undefined;\n mountedInstances = [];\n return recordedState;\n };\n\n var _proto = SideEffect.prototype;\n\n _proto.UNSAFE_componentWillMount = function UNSAFE_componentWillMount() {\n mountedInstances.push(this);\n emitChange();\n };\n\n _proto.componentDidUpdate = function componentDidUpdate() {\n emitChange();\n };\n\n _proto.componentWillUnmount = function componentWillUnmount() {\n var index = mountedInstances.indexOf(this);\n mountedInstances.splice(index, 1);\n emitChange();\n };\n\n _proto.render = function render() {\n return React__default.createElement(WrappedComponent, this.props);\n };\n\n return SideEffect;\n }(React.PureComponent);\n\n _defineProperty(SideEffect, \"displayName\", \"SideEffect(\" + getDisplayName(WrappedComponent) + \")\");\n\n _defineProperty(SideEffect, \"canUseDOM\", canUseDOM);\n\n return SideEffect;\n };\n}\n\nmodule.exports = withSideEffect;","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n'use strict';\n\nvar punycode = require('punycode');\n\nvar util = require('./util');\n\nexports.parse = urlParse;\nexports.resolve = urlResolve;\nexports.resolveObject = urlResolveObject;\nexports.format = urlFormat;\nexports.Url = Url;\n\nfunction Url() {\n this.protocol = null;\n this.slashes = null;\n this.auth = null;\n this.host = null;\n this.port = null;\n this.hostname = null;\n this.hash = null;\n this.search = null;\n this.query = null;\n this.pathname = null;\n this.path = null;\n this.href = null;\n} // Reference: RFC 3986, RFC 1808, RFC 2396\n// define these here so at least they only have to be\n// compiled once on the first module load.\n\n\nvar protocolPattern = /^([a-z0-9.+-]+:)/i,\n portPattern = /:[0-9]*$/,\n // Special case for a simple path URL\nsimplePathPattern = /^(\\/\\/?(?!\\/)[^\\?\\s]*)(\\?[^\\s]*)?$/,\n // RFC 2396: characters reserved for delimiting URLs.\n// We actually just auto-escape these.\ndelims = ['<', '>', '\"', '`', ' ', '\\r', '\\n', '\\t'],\n // RFC 2396: characters not allowed for various reasons.\nunwise = ['{', '}', '|', '\\\\', '^', '`'].concat(delims),\n // Allowed by RFCs, but cause of XSS attacks. Always escape these.\nautoEscape = ['\\''].concat(unwise),\n // Characters that are never ever allowed in a hostname.\n// Note that any invalid chars are also handled, but these\n// are the ones that are *expected* to be seen, so we fast-path\n// them.\nnonHostChars = ['%', '/', '?', ';', '#'].concat(autoEscape),\n hostEndingChars = ['/', '?', '#'],\n hostnameMaxLen = 255,\n hostnamePartPattern = /^[+a-z0-9A-Z_-]{0,63}$/,\n hostnamePartStart = /^([+a-z0-9A-Z_-]{0,63})(.*)$/,\n // protocols that can allow \"unsafe\" and \"unwise\" chars.\nunsafeProtocol = {\n 'javascript': true,\n 'javascript:': true\n},\n // protocols that never have a hostname.\nhostlessProtocol = {\n 'javascript': true,\n 'javascript:': true\n},\n // protocols that always contain a // bit.\nslashedProtocol = {\n 'http': true,\n 'https': true,\n 'ftp': true,\n 'gopher': true,\n 'file': true,\n 'http:': true,\n 'https:': true,\n 'ftp:': true,\n 'gopher:': true,\n 'file:': true\n},\n querystring = require('querystring');\n\nfunction urlParse(url, parseQueryString, slashesDenoteHost) {\n if (url && util.isObject(url) && url instanceof Url) return url;\n var u = new Url();\n u.parse(url, parseQueryString, slashesDenoteHost);\n return u;\n}\n\nUrl.prototype.parse = function (url, parseQueryString, slashesDenoteHost) {\n if (!util.isString(url)) {\n throw new TypeError(\"Parameter 'url' must be a string, not \" + typeof url);\n } // Copy chrome, IE, opera backslash-handling behavior.\n // Back slashes before the query string get converted to forward slashes\n // See: https://code.google.com/p/chromium/issues/detail?id=25916\n\n\n var queryIndex = url.indexOf('?'),\n splitter = queryIndex !== -1 && queryIndex < url.indexOf('#') ? '?' : '#',\n uSplit = url.split(splitter),\n slashRegex = /\\\\/g;\n uSplit[0] = uSplit[0].replace(slashRegex, '/');\n url = uSplit.join(splitter);\n var rest = url; // trim before proceeding.\n // This is to support parse stuff like \" http://foo.com \\n\"\n\n rest = rest.trim();\n\n if (!slashesDenoteHost && url.split('#').length === 1) {\n // Try fast path regexp\n var simplePath = simplePathPattern.exec(rest);\n\n if (simplePath) {\n this.path = rest;\n this.href = rest;\n this.pathname = simplePath[1];\n\n if (simplePath[2]) {\n this.search = simplePath[2];\n\n if (parseQueryString) {\n this.query = querystring.parse(this.search.substr(1));\n } else {\n this.query = this.search.substr(1);\n }\n } else if (parseQueryString) {\n this.search = '';\n this.query = {};\n }\n\n return this;\n }\n }\n\n var proto = protocolPattern.exec(rest);\n\n if (proto) {\n proto = proto[0];\n var lowerProto = proto.toLowerCase();\n this.protocol = lowerProto;\n rest = rest.substr(proto.length);\n } // figure out if it's got a host\n // user@server is *always* interpreted as a hostname, and url\n // resolution will treat //foo/bar as host=foo,path=bar because that's\n // how the browser resolves relative URLs.\n\n\n if (slashesDenoteHost || proto || rest.match(/^\\/\\/[^@\\/]+@[^@\\/]+/)) {\n var slashes = rest.substr(0, 2) === '//';\n\n if (slashes && !(proto && hostlessProtocol[proto])) {\n rest = rest.substr(2);\n this.slashes = true;\n }\n }\n\n if (!hostlessProtocol[proto] && (slashes || proto && !slashedProtocol[proto])) {\n // there's a hostname.\n // the first instance of /, ?, ;, or # ends the host.\n //\n // If there is an @ in the hostname, then non-host chars *are* allowed\n // to the left of the last @ sign, unless some host-ending character\n // comes *before* the @-sign.\n // URLs are obnoxious.\n //\n // ex:\n // http://a@b@c/ => user:a@b host:c\n // http://a@b?@c => user:a host:c path:/?@c\n // v0.12 TODO(isaacs): This is not quite how Chrome does things.\n // Review our test case against browsers more comprehensively.\n // find the first instance of any hostEndingChars\n var hostEnd = -1;\n\n for (var i = 0; i < hostEndingChars.length; i++) {\n var hec = rest.indexOf(hostEndingChars[i]);\n if (hec !== -1 && (hostEnd === -1 || hec < hostEnd)) hostEnd = hec;\n } // at this point, either we have an explicit point where the\n // auth portion cannot go past, or the last @ char is the decider.\n\n\n var auth, atSign;\n\n if (hostEnd === -1) {\n // atSign can be anywhere.\n atSign = rest.lastIndexOf('@');\n } else {\n // atSign must be in auth portion.\n // http://a@b/c@d => host:b auth:a path:/c@d\n atSign = rest.lastIndexOf('@', hostEnd);\n } // Now we have a portion which is definitely the auth.\n // Pull that off.\n\n\n if (atSign !== -1) {\n auth = rest.slice(0, atSign);\n rest = rest.slice(atSign + 1);\n this.auth = decodeURIComponent(auth);\n } // the host is the remaining to the left of the first non-host char\n\n\n hostEnd = -1;\n\n for (var i = 0; i < nonHostChars.length; i++) {\n var hec = rest.indexOf(nonHostChars[i]);\n if (hec !== -1 && (hostEnd === -1 || hec < hostEnd)) hostEnd = hec;\n } // if we still have not hit it, then the entire thing is a host.\n\n\n if (hostEnd === -1) hostEnd = rest.length;\n this.host = rest.slice(0, hostEnd);\n rest = rest.slice(hostEnd); // pull out port.\n\n this.parseHost(); // we've indicated that there is a hostname,\n // so even if it's empty, it has to be present.\n\n this.hostname = this.hostname || ''; // if hostname begins with [ and ends with ]\n // assume that it's an IPv6 address.\n\n var ipv6Hostname = this.hostname[0] === '[' && this.hostname[this.hostname.length - 1] === ']'; // validate a little.\n\n if (!ipv6Hostname) {\n var hostparts = this.hostname.split(/\\./);\n\n for (var i = 0, l = hostparts.length; i < l; i++) {\n var part = hostparts[i];\n if (!part) continue;\n\n if (!part.match(hostnamePartPattern)) {\n var newpart = '';\n\n for (var j = 0, k = part.length; j < k; j++) {\n if (part.charCodeAt(j) > 127) {\n // we replace non-ASCII char with a temporary placeholder\n // we need this to make sure size of hostname is not\n // broken by replacing non-ASCII by nothing\n newpart += 'x';\n } else {\n newpart += part[j];\n }\n } // we test again with ASCII char only\n\n\n if (!newpart.match(hostnamePartPattern)) {\n var validParts = hostparts.slice(0, i);\n var notHost = hostparts.slice(i + 1);\n var bit = part.match(hostnamePartStart);\n\n if (bit) {\n validParts.push(bit[1]);\n notHost.unshift(bit[2]);\n }\n\n if (notHost.length) {\n rest = '/' + notHost.join('.') + rest;\n }\n\n this.hostname = validParts.join('.');\n break;\n }\n }\n }\n }\n\n if (this.hostname.length > hostnameMaxLen) {\n this.hostname = '';\n } else {\n // hostnames are always lower case.\n this.hostname = this.hostname.toLowerCase();\n }\n\n if (!ipv6Hostname) {\n // IDNA Support: Returns a punycoded representation of \"domain\".\n // It only converts parts of the domain name that\n // have non-ASCII characters, i.e. it doesn't matter if\n // you call it with a domain that already is ASCII-only.\n this.hostname = punycode.toASCII(this.hostname);\n }\n\n var p = this.port ? ':' + this.port : '';\n var h = this.hostname || '';\n this.host = h + p;\n this.href += this.host; // strip [ and ] from the hostname\n // the host field still retains them, though\n\n if (ipv6Hostname) {\n this.hostname = this.hostname.substr(1, this.hostname.length - 2);\n\n if (rest[0] !== '/') {\n rest = '/' + rest;\n }\n }\n } // now rest is set to the post-host stuff.\n // chop off any delim chars.\n\n\n if (!unsafeProtocol[lowerProto]) {\n // First, make 100% sure that any \"autoEscape\" chars get\n // escaped, even if encodeURIComponent doesn't think they\n // need to be.\n for (var i = 0, l = autoEscape.length; i < l; i++) {\n var ae = autoEscape[i];\n if (rest.indexOf(ae) === -1) continue;\n var esc = encodeURIComponent(ae);\n\n if (esc === ae) {\n esc = escape(ae);\n }\n\n rest = rest.split(ae).join(esc);\n }\n } // chop off from the tail first.\n\n\n var hash = rest.indexOf('#');\n\n if (hash !== -1) {\n // got a fragment string.\n this.hash = rest.substr(hash);\n rest = rest.slice(0, hash);\n }\n\n var qm = rest.indexOf('?');\n\n if (qm !== -1) {\n this.search = rest.substr(qm);\n this.query = rest.substr(qm + 1);\n\n if (parseQueryString) {\n this.query = querystring.parse(this.query);\n }\n\n rest = rest.slice(0, qm);\n } else if (parseQueryString) {\n // no query string, but parseQueryString still requested\n this.search = '';\n this.query = {};\n }\n\n if (rest) this.pathname = rest;\n\n if (slashedProtocol[lowerProto] && this.hostname && !this.pathname) {\n this.pathname = '/';\n } //to support http.request\n\n\n if (this.pathname || this.search) {\n var p = this.pathname || '';\n var s = this.search || '';\n this.path = p + s;\n } // finally, reconstruct the href based on what has been validated.\n\n\n this.href = this.format();\n return this;\n}; // format a parsed object into a url string\n\n\nfunction urlFormat(obj) {\n // ensure it's an object, and not a string url.\n // If it's an obj, this is a no-op.\n // this way, you can call url_format() on strings\n // to clean up potentially wonky urls.\n if (util.isString(obj)) obj = urlParse(obj);\n if (!(obj instanceof Url)) return Url.prototype.format.call(obj);\n return obj.format();\n}\n\nUrl.prototype.format = function () {\n var auth = this.auth || '';\n\n if (auth) {\n auth = encodeURIComponent(auth);\n auth = auth.replace(/%3A/i, ':');\n auth += '@';\n }\n\n var protocol = this.protocol || '',\n pathname = this.pathname || '',\n hash = this.hash || '',\n host = false,\n query = '';\n\n if (this.host) {\n host = auth + this.host;\n } else if (this.hostname) {\n host = auth + (this.hostname.indexOf(':') === -1 ? this.hostname : '[' + this.hostname + ']');\n\n if (this.port) {\n host += ':' + this.port;\n }\n }\n\n if (this.query && util.isObject(this.query) && Object.keys(this.query).length) {\n query = querystring.stringify(this.query);\n }\n\n var search = this.search || query && '?' + query || '';\n if (protocol && protocol.substr(-1) !== ':') protocol += ':'; // only the slashedProtocols get the //. Not mailto:, xmpp:, etc.\n // unless they had them to begin with.\n\n if (this.slashes || (!protocol || slashedProtocol[protocol]) && host !== false) {\n host = '//' + (host || '');\n if (pathname && pathname.charAt(0) !== '/') pathname = '/' + pathname;\n } else if (!host) {\n host = '';\n }\n\n if (hash && hash.charAt(0) !== '#') hash = '#' + hash;\n if (search && search.charAt(0) !== '?') search = '?' + search;\n pathname = pathname.replace(/[?#]/g, function (match) {\n return encodeURIComponent(match);\n });\n search = search.replace('#', '%23');\n return protocol + host + pathname + search + hash;\n};\n\nfunction urlResolve(source, relative) {\n return urlParse(source, false, true).resolve(relative);\n}\n\nUrl.prototype.resolve = function (relative) {\n return this.resolveObject(urlParse(relative, false, true)).format();\n};\n\nfunction urlResolveObject(source, relative) {\n if (!source) return relative;\n return urlParse(source, false, true).resolveObject(relative);\n}\n\nUrl.prototype.resolveObject = function (relative) {\n if (util.isString(relative)) {\n var rel = new Url();\n rel.parse(relative, false, true);\n relative = rel;\n }\n\n var result = new Url();\n var tkeys = Object.keys(this);\n\n for (var tk = 0; tk < tkeys.length; tk++) {\n var tkey = tkeys[tk];\n result[tkey] = this[tkey];\n } // hash is always overridden, no matter what.\n // even href=\"\" will remove it.\n\n\n result.hash = relative.hash; // if the relative url is empty, then there's nothing left to do here.\n\n if (relative.href === '') {\n result.href = result.format();\n return result;\n } // hrefs like //foo/bar always cut to the protocol.\n\n\n if (relative.slashes && !relative.protocol) {\n // take everything except the protocol from relative\n var rkeys = Object.keys(relative);\n\n for (var rk = 0; rk < rkeys.length; rk++) {\n var rkey = rkeys[rk];\n if (rkey !== 'protocol') result[rkey] = relative[rkey];\n } //urlParse appends trailing / to urls like http://www.example.com\n\n\n if (slashedProtocol[result.protocol] && result.hostname && !result.pathname) {\n result.path = result.pathname = '/';\n }\n\n result.href = result.format();\n return result;\n }\n\n if (relative.protocol && relative.protocol !== result.protocol) {\n // if it's a known url protocol, then changing\n // the protocol does weird things\n // first, if it's not file:, then we MUST have a host,\n // and if there was a path\n // to begin with, then we MUST have a path.\n // if it is file:, then the host is dropped,\n // because that's known to be hostless.\n // anything else is assumed to be absolute.\n if (!slashedProtocol[relative.protocol]) {\n var keys = Object.keys(relative);\n\n for (var v = 0; v < keys.length; v++) {\n var k = keys[v];\n result[k] = relative[k];\n }\n\n result.href = result.format();\n return result;\n }\n\n result.protocol = relative.protocol;\n\n if (!relative.host && !hostlessProtocol[relative.protocol]) {\n var relPath = (relative.pathname || '').split('/');\n\n while (relPath.length && !(relative.host = relPath.shift())) {\n ;\n }\n\n if (!relative.host) relative.host = '';\n if (!relative.hostname) relative.hostname = '';\n if (relPath[0] !== '') relPath.unshift('');\n if (relPath.length < 2) relPath.unshift('');\n result.pathname = relPath.join('/');\n } else {\n result.pathname = relative.pathname;\n }\n\n result.search = relative.search;\n result.query = relative.query;\n result.host = relative.host || '';\n result.auth = relative.auth;\n result.hostname = relative.hostname || relative.host;\n result.port = relative.port; // to support http.request\n\n if (result.pathname || result.search) {\n var p = result.pathname || '';\n var s = result.search || '';\n result.path = p + s;\n }\n\n result.slashes = result.slashes || relative.slashes;\n result.href = result.format();\n return result;\n }\n\n var isSourceAbs = result.pathname && result.pathname.charAt(0) === '/',\n isRelAbs = relative.host || relative.pathname && relative.pathname.charAt(0) === '/',\n mustEndAbs = isRelAbs || isSourceAbs || result.host && relative.pathname,\n removeAllDots = mustEndAbs,\n srcPath = result.pathname && result.pathname.split('/') || [],\n relPath = relative.pathname && relative.pathname.split('/') || [],\n psychotic = result.protocol && !slashedProtocol[result.protocol]; // if the url is a non-slashed url, then relative\n // links like ../.. should be able\n // to crawl up to the hostname, as well. This is strange.\n // result.protocol has already been set by now.\n // Later on, put the first path part into the host field.\n\n if (psychotic) {\n result.hostname = '';\n result.port = null;\n\n if (result.host) {\n if (srcPath[0] === '') srcPath[0] = result.host;else srcPath.unshift(result.host);\n }\n\n result.host = '';\n\n if (relative.protocol) {\n relative.hostname = null;\n relative.port = null;\n\n if (relative.host) {\n if (relPath[0] === '') relPath[0] = relative.host;else relPath.unshift(relative.host);\n }\n\n relative.host = null;\n }\n\n mustEndAbs = mustEndAbs && (relPath[0] === '' || srcPath[0] === '');\n }\n\n if (isRelAbs) {\n // it's absolute.\n result.host = relative.host || relative.host === '' ? relative.host : result.host;\n result.hostname = relative.hostname || relative.hostname === '' ? relative.hostname : result.hostname;\n result.search = relative.search;\n result.query = relative.query;\n srcPath = relPath; // fall through to the dot-handling below.\n } else if (relPath.length) {\n // it's relative\n // throw away the existing file, and take the new path instead.\n if (!srcPath) srcPath = [];\n srcPath.pop();\n srcPath = srcPath.concat(relPath);\n result.search = relative.search;\n result.query = relative.query;\n } else if (!util.isNullOrUndefined(relative.search)) {\n // just pull out the search.\n // like href='?foo'.\n // Put this after the other two cases because it simplifies the booleans\n if (psychotic) {\n result.hostname = result.host = srcPath.shift(); //occationaly the auth can get stuck only in host\n //this especially happens in cases like\n //url.resolveObject('mailto:local1@domain1', 'local2@domain2')\n\n var authInHost = result.host && result.host.indexOf('@') > 0 ? result.host.split('@') : false;\n\n if (authInHost) {\n result.auth = authInHost.shift();\n result.host = result.hostname = authInHost.shift();\n }\n }\n\n result.search = relative.search;\n result.query = relative.query; //to support http.request\n\n if (!util.isNull(result.pathname) || !util.isNull(result.search)) {\n result.path = (result.pathname ? result.pathname : '') + (result.search ? result.search : '');\n }\n\n result.href = result.format();\n return result;\n }\n\n if (!srcPath.length) {\n // no path at all. easy.\n // we've already handled the other stuff above.\n result.pathname = null; //to support http.request\n\n if (result.search) {\n result.path = '/' + result.search;\n } else {\n result.path = null;\n }\n\n result.href = result.format();\n return result;\n } // if a url ENDs in . or .., then it must get a trailing slash.\n // however, if it ends in anything else non-slashy,\n // then it must NOT get a trailing slash.\n\n\n var last = srcPath.slice(-1)[0];\n var hasTrailingSlash = (result.host || relative.host || srcPath.length > 1) && (last === '.' || last === '..') || last === ''; // strip single dots, resolve double dots to parent dir\n // if the path tries to go above the root, `up` ends up > 0\n\n var up = 0;\n\n for (var i = srcPath.length; i >= 0; i--) {\n last = srcPath[i];\n\n if (last === '.') {\n srcPath.splice(i, 1);\n } else if (last === '..') {\n srcPath.splice(i, 1);\n up++;\n } else if (up) {\n srcPath.splice(i, 1);\n up--;\n }\n } // if the path is allowed to go above the root, restore leading ..s\n\n\n if (!mustEndAbs && !removeAllDots) {\n for (; up--; up) {\n srcPath.unshift('..');\n }\n }\n\n if (mustEndAbs && srcPath[0] !== '' && (!srcPath[0] || srcPath[0].charAt(0) !== '/')) {\n srcPath.unshift('');\n }\n\n if (hasTrailingSlash && srcPath.join('/').substr(-1) !== '/') {\n srcPath.push('');\n }\n\n var isAbsolute = srcPath[0] === '' || srcPath[0] && srcPath[0].charAt(0) === '/'; // put the host back\n\n if (psychotic) {\n result.hostname = result.host = isAbsolute ? '' : srcPath.length ? srcPath.shift() : ''; //occationaly the auth can get stuck only in host\n //this especially happens in cases like\n //url.resolveObject('mailto:local1@domain1', 'local2@domain2')\n\n var authInHost = result.host && result.host.indexOf('@') > 0 ? result.host.split('@') : false;\n\n if (authInHost) {\n result.auth = authInHost.shift();\n result.host = result.hostname = authInHost.shift();\n }\n }\n\n mustEndAbs = mustEndAbs || result.host && srcPath.length;\n\n if (mustEndAbs && !isAbsolute) {\n srcPath.unshift('');\n }\n\n if (!srcPath.length) {\n result.pathname = null;\n result.path = null;\n } else {\n result.pathname = srcPath.join('/');\n } //to support request.http\n\n\n if (!util.isNull(result.pathname) || !util.isNull(result.search)) {\n result.path = (result.pathname ? result.pathname : '') + (result.search ? result.search : '');\n }\n\n result.auth = relative.auth || result.auth;\n result.slashes = result.slashes || relative.slashes;\n result.href = result.format();\n return result;\n};\n\nUrl.prototype.parseHost = function () {\n var host = this.host;\n var port = portPattern.exec(host);\n\n if (port) {\n port = port[0];\n\n if (port !== ':') {\n this.port = port.substr(1);\n }\n\n host = host.substr(0, host.length - port.length);\n }\n\n if (host) this.hostname = host;\n};","/*! https://mths.be/punycode v1.4.1 by @mathias */\n;\n\n(function (root) {\n /** Detect free variables */\n var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;\n var freeModule = typeof module == 'object' && module && !module.nodeType && module;\n var freeGlobal = typeof global == 'object' && global;\n\n if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal || freeGlobal.self === freeGlobal) {\n root = freeGlobal;\n }\n /**\n * The `punycode` object.\n * @name punycode\n * @type Object\n */\n\n\n var punycode,\n\n /** Highest positive signed 32-bit float value */\n maxInt = 2147483647,\n // aka. 0x7FFFFFFF or 2^31-1\n\n /** Bootstring parameters */\n base = 36,\n tMin = 1,\n tMax = 26,\n skew = 38,\n damp = 700,\n initialBias = 72,\n initialN = 128,\n // 0x80\n delimiter = '-',\n // '\\x2D'\n\n /** Regular expressions */\n regexPunycode = /^xn--/,\n regexNonASCII = /[^\\x20-\\x7E]/,\n // unprintable ASCII chars + non-ASCII chars\n regexSeparators = /[\\x2E\\u3002\\uFF0E\\uFF61]/g,\n // RFC 3490 separators\n\n /** Error messages */\n errors = {\n 'overflow': 'Overflow: input needs wider integers to process',\n 'not-basic': 'Illegal input >= 0x80 (not a basic code point)',\n 'invalid-input': 'Invalid input'\n },\n\n /** Convenience shortcuts */\n baseMinusTMin = base - tMin,\n floor = Math.floor,\n stringFromCharCode = String.fromCharCode,\n\n /** Temporary variable */\n key;\n /*--------------------------------------------------------------------------*/\n\n /**\n * A generic error utility function.\n * @private\n * @param {String} type The error type.\n * @returns {Error} Throws a `RangeError` with the applicable error message.\n */\n\n function error(type) {\n throw new RangeError(errors[type]);\n }\n /**\n * A generic `Array#map` utility function.\n * @private\n * @param {Array} array The array to iterate over.\n * @param {Function} callback The function that gets called for every array\n * item.\n * @returns {Array} A new array of values returned by the callback function.\n */\n\n\n function map(array, fn) {\n var length = array.length;\n var result = [];\n\n while (length--) {\n result[length] = fn(array[length]);\n }\n\n return result;\n }\n /**\n * A simple `Array#map`-like wrapper to work with domain name strings or email\n * addresses.\n * @private\n * @param {String} domain The domain name or email address.\n * @param {Function} callback The function that gets called for every\n * character.\n * @returns {Array} A new string of characters returned by the callback\n * function.\n */\n\n\n function mapDomain(string, fn) {\n var parts = string.split('@');\n var result = '';\n\n if (parts.length > 1) {\n // In email addresses, only the domain name should be punycoded. Leave\n // the local part (i.e. everything up to `@`) intact.\n result = parts[0] + '@';\n string = parts[1];\n } // Avoid `split(regex)` for IE8 compatibility. See #17.\n\n\n string = string.replace(regexSeparators, '\\x2E');\n var labels = string.split('.');\n var encoded = map(labels, fn).join('.');\n return result + encoded;\n }\n /**\n * Creates an array containing the numeric code points of each Unicode\n * character in the string. While JavaScript uses UCS-2 internally,\n * this function will convert a pair of surrogate halves (each of which\n * UCS-2 exposes as separate characters) into a single code point,\n * matching UTF-16.\n * @see `punycode.ucs2.encode`\n * @see \n * @memberOf punycode.ucs2\n * @name decode\n * @param {String} string The Unicode input string (UCS-2).\n * @returns {Array} The new array of code points.\n */\n\n\n function ucs2decode(string) {\n var output = [],\n counter = 0,\n length = string.length,\n value,\n extra;\n\n while (counter < length) {\n value = string.charCodeAt(counter++);\n\n if (value >= 0xD800 && value <= 0xDBFF && counter < length) {\n // high surrogate, and there is a next character\n extra = string.charCodeAt(counter++);\n\n if ((extra & 0xFC00) == 0xDC00) {\n // low surrogate\n output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);\n } else {\n // unmatched surrogate; only append this code unit, in case the next\n // code unit is the high surrogate of a surrogate pair\n output.push(value);\n counter--;\n }\n } else {\n output.push(value);\n }\n }\n\n return output;\n }\n /**\n * Creates a string based on an array of numeric code points.\n * @see `punycode.ucs2.decode`\n * @memberOf punycode.ucs2\n * @name encode\n * @param {Array} codePoints The array of numeric code points.\n * @returns {String} The new Unicode string (UCS-2).\n */\n\n\n function ucs2encode(array) {\n return map(array, function (value) {\n var output = '';\n\n if (value > 0xFFFF) {\n value -= 0x10000;\n output += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);\n value = 0xDC00 | value & 0x3FF;\n }\n\n output += stringFromCharCode(value);\n return output;\n }).join('');\n }\n /**\n * Converts a basic code point into a digit/integer.\n * @see `digitToBasic()`\n * @private\n * @param {Number} codePoint The basic numeric code point value.\n * @returns {Number} The numeric value of a basic code point (for use in\n * representing integers) in the range `0` to `base - 1`, or `base` if\n * the code point does not represent a value.\n */\n\n\n function basicToDigit(codePoint) {\n if (codePoint - 48 < 10) {\n return codePoint - 22;\n }\n\n if (codePoint - 65 < 26) {\n return codePoint - 65;\n }\n\n if (codePoint - 97 < 26) {\n return codePoint - 97;\n }\n\n return base;\n }\n /**\n * Converts a digit/integer into a basic code point.\n * @see `basicToDigit()`\n * @private\n * @param {Number} digit The numeric value of a basic code point.\n * @returns {Number} The basic code point whose value (when used for\n * representing integers) is `digit`, which needs to be in the range\n * `0` to `base - 1`. If `flag` is non-zero, the uppercase form is\n * used; else, the lowercase form is used. The behavior is undefined\n * if `flag` is non-zero and `digit` has no uppercase form.\n */\n\n\n function digitToBasic(digit, flag) {\n // 0..25 map to ASCII a..z or A..Z\n // 26..35 map to ASCII 0..9\n return digit + 22 + 75 * (digit < 26) - ((flag != 0) << 5);\n }\n /**\n * Bias adaptation function as per section 3.4 of RFC 3492.\n * https://tools.ietf.org/html/rfc3492#section-3.4\n * @private\n */\n\n\n function adapt(delta, numPoints, firstTime) {\n var k = 0;\n delta = firstTime ? floor(delta / damp) : delta >> 1;\n delta += floor(delta / numPoints);\n\n for (;\n /* no initialization */\n delta > baseMinusTMin * tMax >> 1; k += base) {\n delta = floor(delta / baseMinusTMin);\n }\n\n return floor(k + (baseMinusTMin + 1) * delta / (delta + skew));\n }\n /**\n * Converts a Punycode string of ASCII-only symbols to a string of Unicode\n * symbols.\n * @memberOf punycode\n * @param {String} input The Punycode string of ASCII-only symbols.\n * @returns {String} The resulting string of Unicode symbols.\n */\n\n\n function decode(input) {\n // Don't use UCS-2\n var output = [],\n inputLength = input.length,\n out,\n i = 0,\n n = initialN,\n bias = initialBias,\n basic,\n j,\n index,\n oldi,\n w,\n k,\n digit,\n t,\n\n /** Cached calculation results */\n baseMinusT; // Handle the basic code points: let `basic` be the number of input code\n // points before the last delimiter, or `0` if there is none, then copy\n // the first basic code points to the output.\n\n basic = input.lastIndexOf(delimiter);\n\n if (basic < 0) {\n basic = 0;\n }\n\n for (j = 0; j < basic; ++j) {\n // if it's not a basic code point\n if (input.charCodeAt(j) >= 0x80) {\n error('not-basic');\n }\n\n output.push(input.charCodeAt(j));\n } // Main decoding loop: start just after the last delimiter if any basic code\n // points were copied; start at the beginning otherwise.\n\n\n for (index = basic > 0 ? basic + 1 : 0; index < inputLength;)\n /* no final expression */\n {\n // `index` is the index of the next character to be consumed.\n // Decode a generalized variable-length integer into `delta`,\n // which gets added to `i`. The overflow checking is easier\n // if we increase `i` as we go, then subtract off its starting\n // value at the end to obtain `delta`.\n for (oldi = i, w = 1, k = base;;\n /* no condition */\n k += base) {\n if (index >= inputLength) {\n error('invalid-input');\n }\n\n digit = basicToDigit(input.charCodeAt(index++));\n\n if (digit >= base || digit > floor((maxInt - i) / w)) {\n error('overflow');\n }\n\n i += digit * w;\n t = k <= bias ? tMin : k >= bias + tMax ? tMax : k - bias;\n\n if (digit < t) {\n break;\n }\n\n baseMinusT = base - t;\n\n if (w > floor(maxInt / baseMinusT)) {\n error('overflow');\n }\n\n w *= baseMinusT;\n }\n\n out = output.length + 1;\n bias = adapt(i - oldi, out, oldi == 0); // `i` was supposed to wrap around from `out` to `0`,\n // incrementing `n` each time, so we'll fix that now:\n\n if (floor(i / out) > maxInt - n) {\n error('overflow');\n }\n\n n += floor(i / out);\n i %= out; // Insert `n` at position `i` of the output\n\n output.splice(i++, 0, n);\n }\n\n return ucs2encode(output);\n }\n /**\n * Converts a string of Unicode symbols (e.g. a domain name label) to a\n * Punycode string of ASCII-only symbols.\n * @memberOf punycode\n * @param {String} input The string of Unicode symbols.\n * @returns {String} The resulting Punycode string of ASCII-only symbols.\n */\n\n\n function encode(input) {\n var n,\n delta,\n handledCPCount,\n basicLength,\n bias,\n j,\n m,\n q,\n k,\n t,\n currentValue,\n output = [],\n\n /** `inputLength` will hold the number of code points in `input`. */\n inputLength,\n\n /** Cached calculation results */\n handledCPCountPlusOne,\n baseMinusT,\n qMinusT; // Convert the input in UCS-2 to Unicode\n\n input = ucs2decode(input); // Cache the length\n\n inputLength = input.length; // Initialize the state\n\n n = initialN;\n delta = 0;\n bias = initialBias; // Handle the basic code points\n\n for (j = 0; j < inputLength; ++j) {\n currentValue = input[j];\n\n if (currentValue < 0x80) {\n output.push(stringFromCharCode(currentValue));\n }\n }\n\n handledCPCount = basicLength = output.length; // `handledCPCount` is the number of code points that have been handled;\n // `basicLength` is the number of basic code points.\n // Finish the basic string - if it is not empty - with a delimiter\n\n if (basicLength) {\n output.push(delimiter);\n } // Main encoding loop:\n\n\n while (handledCPCount < inputLength) {\n // All non-basic code points < n have been handled already. Find the next\n // larger one:\n for (m = maxInt, j = 0; j < inputLength; ++j) {\n currentValue = input[j];\n\n if (currentValue >= n && currentValue < m) {\n m = currentValue;\n }\n } // Increase `delta` enough to advance the decoder's state to ,\n // but guard against overflow\n\n\n handledCPCountPlusOne = handledCPCount + 1;\n\n if (m - n > floor((maxInt - delta) / handledCPCountPlusOne)) {\n error('overflow');\n }\n\n delta += (m - n) * handledCPCountPlusOne;\n n = m;\n\n for (j = 0; j < inputLength; ++j) {\n currentValue = input[j];\n\n if (currentValue < n && ++delta > maxInt) {\n error('overflow');\n }\n\n if (currentValue == n) {\n // Represent delta as a generalized variable-length integer\n for (q = delta, k = base;;\n /* no condition */\n k += base) {\n t = k <= bias ? tMin : k >= bias + tMax ? tMax : k - bias;\n\n if (q < t) {\n break;\n }\n\n qMinusT = q - t;\n baseMinusT = base - t;\n output.push(stringFromCharCode(digitToBasic(t + qMinusT % baseMinusT, 0)));\n q = floor(qMinusT / baseMinusT);\n }\n\n output.push(stringFromCharCode(digitToBasic(q, 0)));\n bias = adapt(delta, handledCPCountPlusOne, handledCPCount == basicLength);\n delta = 0;\n ++handledCPCount;\n }\n }\n\n ++delta;\n ++n;\n }\n\n return output.join('');\n }\n /**\n * Converts a Punycode string representing a domain name or an email address\n * to Unicode. Only the Punycoded parts of the input will be converted, i.e.\n * it doesn't matter if you call it on a string that has already been\n * converted to Unicode.\n * @memberOf punycode\n * @param {String} input The Punycoded domain name or email address to\n * convert to Unicode.\n * @returns {String} The Unicode representation of the given Punycode\n * string.\n */\n\n\n function toUnicode(input) {\n return mapDomain(input, function (string) {\n return regexPunycode.test(string) ? decode(string.slice(4).toLowerCase()) : string;\n });\n }\n /**\n * Converts a Unicode string representing a domain name or an email address to\n * Punycode. Only the non-ASCII parts of the domain name will be converted,\n * i.e. it doesn't matter if you call it with a domain that's already in\n * ASCII.\n * @memberOf punycode\n * @param {String} input The domain name or email address to convert, as a\n * Unicode string.\n * @returns {String} The Punycode representation of the given domain name or\n * email address.\n */\n\n\n function toASCII(input) {\n return mapDomain(input, function (string) {\n return regexNonASCII.test(string) ? 'xn--' + encode(string) : string;\n });\n }\n /*--------------------------------------------------------------------------*/\n\n /** Define the public API */\n\n\n punycode = {\n /**\n * A string representing the current Punycode.js version number.\n * @memberOf punycode\n * @type String\n */\n 'version': '1.4.1',\n\n /**\n * An object of methods to convert from JavaScript's internal character\n * representation (UCS-2) to Unicode code points, and back.\n * @see \n * @memberOf punycode\n * @type Object\n */\n 'ucs2': {\n 'decode': ucs2decode,\n 'encode': ucs2encode\n },\n 'decode': decode,\n 'encode': encode,\n 'toASCII': toASCII,\n 'toUnicode': toUnicode\n };\n /** Expose `punycode` */\n // Some AMD build optimizers, like r.js, check for specific condition patterns\n // like the following:\n\n if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) {\n define('punycode', function () {\n return punycode;\n });\n } else if (freeExports && freeModule) {\n if (module.exports == freeExports) {\n // in Node.js, io.js, or RingoJS v0.8.0+\n freeModule.exports = punycode;\n } else {\n // in Narwhal or RingoJS v0.7.0-\n for (key in punycode) {\n punycode.hasOwnProperty(key) && (freeExports[key] = punycode[key]);\n }\n }\n } else {\n // in Rhino or a web browser\n root.punycode = punycode;\n }\n})(this);","module.exports = {\n siteUrl: `http://178.79.185.186`, // Site domain. Do not include a trailing slash!\n\n postsPerPage: 12, // Number of posts shown on paginated pages (changes this requires sometimes to delete the cache)\n\n siteTitleMeta: `Ghost Gatsby Starter`, // This allows an alternative site title for meta data for pages.\n siteDescriptionMeta: `A starter template to build amazing static websites with Ghost and Gatsby`, // This allows an alternative site description for meta data for pages.\n\n shareImageWidth: 1000, // Change to the width of your default share image\n shareImageHeight: 523, // Change to the height of your default share image\n\n shortTitle: `Ghost`, // Used for App manifest e.g. Mobile Home Screen\n siteIcon: `favicon.png`, // Logo in /static dir used for SEO, RSS, and App manifest\n backgroundColor: `#e9e9e9`, // Used for Offline Manifest\n themeColor: `#15171A`, // Used for Offline Manifest\n};\n","'use strict';\n\nmodule.exports = {\n isString: function isString(arg) {\n return typeof arg === 'string';\n },\n isObject: function isObject(arg) {\n return typeof arg === 'object' && arg !== null;\n },\n isNull: function isNull(arg) {\n return arg === null;\n },\n isNullOrUndefined: function isNullOrUndefined(arg) {\n return arg == null;\n }\n};","module.exports = function(module) {\n\tif (!module.webpackPolyfill) {\n\t\tmodule.deprecate = function() {};\n\t\tmodule.paths = [];\n\t\t// module.parent = undefined by default\n\t\tif (!module.children) module.children = [];\n\t\tObject.defineProperty(module, \"loaded\", {\n\t\t\tenumerable: true,\n\t\t\tget: function() {\n\t\t\t\treturn module.l;\n\t\t\t}\n\t\t});\n\t\tObject.defineProperty(module, \"id\", {\n\t\t\tenumerable: true,\n\t\t\tget: function() {\n\t\t\t\treturn module.i;\n\t\t\t}\n\t\t});\n\t\tmodule.webpackPolyfill = 1;\n\t}\n\treturn module;\n};\n","/* global Map:readonly, Set:readonly, ArrayBuffer:readonly */\nvar hasElementType = typeof Element !== 'undefined';\nvar hasMap = typeof Map === 'function';\nvar hasSet = typeof Set === 'function';\nvar hasArrayBuffer = typeof ArrayBuffer === 'function' && !!ArrayBuffer.isView; // Note: We **don't** need `envHasBigInt64Array` in fde es6/index.js\n\nfunction equal(a, b) {\n // START: fast-deep-equal es6/index.js 3.1.1\n if (a === b) return true;\n\n if (a && b && typeof a == 'object' && typeof b == 'object') {\n if (a.constructor !== b.constructor) return false;\n var length, i, keys;\n\n if (Array.isArray(a)) {\n length = a.length;\n if (length != b.length) return false;\n\n for (i = length; i-- !== 0;) {\n if (!equal(a[i], b[i])) return false;\n }\n\n return true;\n } // START: Modifications:\n // 1. Extra `has &&` helpers in initial condition allow es6 code\n // to co-exist with es5.\n // 2. Replace `for of` with es5 compliant iteration using `for`.\n // Basically, take:\n //\n // ```js\n // for (i of a.entries())\n // if (!b.has(i[0])) return false;\n // ```\n //\n // ... and convert to:\n //\n // ```js\n // it = a.entries();\n // while (!(i = it.next()).done)\n // if (!b.has(i.value[0])) return false;\n // ```\n //\n // **Note**: `i` access switches to `i.value`.\n\n\n var it;\n\n if (hasMap && a instanceof Map && b instanceof Map) {\n if (a.size !== b.size) return false;\n it = a.entries();\n\n while (!(i = it.next()).done) {\n if (!b.has(i.value[0])) return false;\n }\n\n it = a.entries();\n\n while (!(i = it.next()).done) {\n if (!equal(i.value[1], b.get(i.value[0]))) return false;\n }\n\n return true;\n }\n\n if (hasSet && a instanceof Set && b instanceof Set) {\n if (a.size !== b.size) return false;\n it = a.entries();\n\n while (!(i = it.next()).done) {\n if (!b.has(i.value[0])) return false;\n }\n\n return true;\n } // END: Modifications\n\n\n if (hasArrayBuffer && ArrayBuffer.isView(a) && ArrayBuffer.isView(b)) {\n length = a.length;\n if (length != b.length) return false;\n\n for (i = length; i-- !== 0;) {\n if (a[i] !== b[i]) return false;\n }\n\n return true;\n }\n\n if (a.constructor === RegExp) return a.source === b.source && a.flags === b.flags;\n if (a.valueOf !== Object.prototype.valueOf) return a.valueOf() === b.valueOf();\n if (a.toString !== Object.prototype.toString) return a.toString() === b.toString();\n keys = Object.keys(a);\n length = keys.length;\n if (length !== Object.keys(b).length) return false;\n\n for (i = length; i-- !== 0;) {\n if (!Object.prototype.hasOwnProperty.call(b, keys[i])) return false;\n } // END: fast-deep-equal\n // START: react-fast-compare\n // custom handling for DOM elements\n\n\n if (hasElementType && a instanceof Element) return false; // custom handling for React/Preact\n\n for (i = length; i-- !== 0;) {\n if ((keys[i] === '_owner' || keys[i] === '__v' || keys[i] === '__o') && a.$$typeof) {\n // React-specific: avoid traversing React elements' _owner\n // Preact-specific: avoid traversing Preact elements' __v and __o\n // __v = $_original / $_vnode\n // __o = $_owner\n // These properties contain circular references and are not needed when\n // comparing the actual elements (and not their owners)\n // .$$typeof and ._store on just reasonable markers of elements\n continue;\n } // all other properties should be traversed as usual\n\n\n if (!equal(a[keys[i]], b[keys[i]])) return false;\n } // END: react-fast-compare\n // START: fast-deep-equal\n\n\n return true;\n }\n\n return a !== a && b !== b;\n} // end fast-deep-equal\n\n\nmodule.exports = function isEqual(a, b) {\n try {\n return equal(a, b);\n } catch (error) {\n if ((error.message || '').match(/stack|recursion/i)) {\n // warn on circular references, don't crash\n // browsers give this different errors name and messages:\n // chrome/safari: \"RangeError\", \"Maximum call stack size exceeded\"\n // firefox: \"InternalError\", too much recursion\"\n // edge: \"Error\", \"Out of stack space\"\n console.warn('react-fast-compare cannot handle circular refs');\n return false;\n } // some other error. we should definitely know about these\n\n\n throw error;\n }\n};","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n'use strict'; // If obj.hasOwnProperty has been overridden, then calling\n// obj.hasOwnProperty(prop) will break.\n// See: https://github.com/joyent/node/issues/1707\n\nfunction hasOwnProperty(obj, prop) {\n return Object.prototype.hasOwnProperty.call(obj, prop);\n}\n\nmodule.exports = function (qs, sep, eq, options) {\n sep = sep || '&';\n eq = eq || '=';\n var obj = {};\n\n if (typeof qs !== 'string' || qs.length === 0) {\n return obj;\n }\n\n var regexp = /\\+/g;\n qs = qs.split(sep);\n var maxKeys = 1000;\n\n if (options && typeof options.maxKeys === 'number') {\n maxKeys = options.maxKeys;\n }\n\n var len = qs.length; // maxKeys <= 0 means that we should not limit keys count\n\n if (maxKeys > 0 && len > maxKeys) {\n len = maxKeys;\n }\n\n for (var i = 0; i < len; ++i) {\n var x = qs[i].replace(regexp, '%20'),\n idx = x.indexOf(eq),\n kstr,\n vstr,\n k,\n v;\n\n if (idx >= 0) {\n kstr = x.substr(0, idx);\n vstr = x.substr(idx + 1);\n } else {\n kstr = x;\n vstr = '';\n }\n\n k = decodeURIComponent(kstr);\n v = decodeURIComponent(vstr);\n\n if (!hasOwnProperty(obj, k)) {\n obj[k] = v;\n } else if (isArray(obj[k])) {\n obj[k].push(v);\n } else {\n obj[k] = [obj[k], v];\n }\n }\n\n return obj;\n};\n\nvar isArray = Array.isArray || function (xs) {\n return Object.prototype.toString.call(xs) === '[object Array]';\n};","import PropTypes from 'prop-types';\nimport withSideEffect from 'react-side-effect';\nimport isEqual from 'react-fast-compare';\nimport React from 'react';\nimport objectAssign from 'object-assign';\nvar ATTRIBUTE_NAMES = {\n BODY: \"bodyAttributes\",\n HTML: \"htmlAttributes\",\n TITLE: \"titleAttributes\"\n};\nvar TAG_NAMES = {\n BASE: \"base\",\n BODY: \"body\",\n HEAD: \"head\",\n HTML: \"html\",\n LINK: \"link\",\n META: \"meta\",\n NOSCRIPT: \"noscript\",\n SCRIPT: \"script\",\n STYLE: \"style\",\n TITLE: \"title\"\n};\nvar VALID_TAG_NAMES = Object.keys(TAG_NAMES).map(function (name) {\n return TAG_NAMES[name];\n});\nvar TAG_PROPERTIES = {\n CHARSET: \"charset\",\n CSS_TEXT: \"cssText\",\n HREF: \"href\",\n HTTPEQUIV: \"http-equiv\",\n INNER_HTML: \"innerHTML\",\n ITEM_PROP: \"itemprop\",\n NAME: \"name\",\n PROPERTY: \"property\",\n REL: \"rel\",\n SRC: \"src\",\n TARGET: \"target\"\n};\nvar REACT_TAG_MAP = {\n accesskey: \"accessKey\",\n charset: \"charSet\",\n class: \"className\",\n contenteditable: \"contentEditable\",\n contextmenu: \"contextMenu\",\n \"http-equiv\": \"httpEquiv\",\n itemprop: \"itemProp\",\n tabindex: \"tabIndex\"\n};\nvar HELMET_PROPS = {\n DEFAULT_TITLE: \"defaultTitle\",\n DEFER: \"defer\",\n ENCODE_SPECIAL_CHARACTERS: \"encodeSpecialCharacters\",\n ON_CHANGE_CLIENT_STATE: \"onChangeClientState\",\n TITLE_TEMPLATE: \"titleTemplate\"\n};\nvar HTML_TAG_MAP = Object.keys(REACT_TAG_MAP).reduce(function (obj, key) {\n obj[REACT_TAG_MAP[key]] = key;\n return obj;\n}, {});\nvar SELF_CLOSING_TAGS = [TAG_NAMES.NOSCRIPT, TAG_NAMES.SCRIPT, TAG_NAMES.STYLE];\nvar HELMET_ATTRIBUTE = \"data-react-helmet\";\n\nvar _typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) {\n return typeof obj;\n} : function (obj) {\n return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj;\n};\n\nvar classCallCheck = function classCallCheck(instance, Constructor) {\n if (!(instance instanceof Constructor)) {\n throw new TypeError(\"Cannot call a class as a function\");\n }\n};\n\nvar createClass = function () {\n function defineProperties(target, props) {\n for (var i = 0; i < props.length; i++) {\n var descriptor = props[i];\n descriptor.enumerable = descriptor.enumerable || false;\n descriptor.configurable = true;\n if (\"value\" in descriptor) descriptor.writable = true;\n Object.defineProperty(target, descriptor.key, descriptor);\n }\n }\n\n return function (Constructor, protoProps, staticProps) {\n if (protoProps) defineProperties(Constructor.prototype, protoProps);\n if (staticProps) defineProperties(Constructor, staticProps);\n return Constructor;\n };\n}();\n\nvar _extends = Object.assign || function (target) {\n for (var i = 1; i < arguments.length; i++) {\n var source = arguments[i];\n\n for (var key in source) {\n if (Object.prototype.hasOwnProperty.call(source, key)) {\n target[key] = source[key];\n }\n }\n }\n\n return target;\n};\n\nvar inherits = function inherits(subClass, superClass) {\n if (typeof superClass !== \"function\" && superClass !== null) {\n throw new TypeError(\"Super expression must either be null or a function, not \" + typeof superClass);\n }\n\n subClass.prototype = Object.create(superClass && superClass.prototype, {\n constructor: {\n value: subClass,\n enumerable: false,\n writable: true,\n configurable: true\n }\n });\n if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;\n};\n\nvar objectWithoutProperties = function objectWithoutProperties(obj, keys) {\n var target = {};\n\n for (var i in obj) {\n if (keys.indexOf(i) >= 0) continue;\n if (!Object.prototype.hasOwnProperty.call(obj, i)) continue;\n target[i] = obj[i];\n }\n\n return target;\n};\n\nvar possibleConstructorReturn = function possibleConstructorReturn(self, call) {\n if (!self) {\n throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");\n }\n\n return call && (typeof call === \"object\" || typeof call === \"function\") ? call : self;\n};\n\nvar encodeSpecialCharacters = function encodeSpecialCharacters(str) {\n var encode = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;\n\n if (encode === false) {\n return String(str);\n }\n\n return String(str).replace(/&/g, \"&\").replace(//g, \">\").replace(/\"/g, \""\").replace(/'/g, \"'\");\n};\n\nvar getTitleFromPropsList = function getTitleFromPropsList(propsList) {\n var innermostTitle = getInnermostProperty(propsList, TAG_NAMES.TITLE);\n var innermostTemplate = getInnermostProperty(propsList, HELMET_PROPS.TITLE_TEMPLATE);\n\n if (innermostTemplate && innermostTitle) {\n // use function arg to avoid need to escape $ characters\n return innermostTemplate.replace(/%s/g, function () {\n return Array.isArray(innermostTitle) ? innermostTitle.join(\"\") : innermostTitle;\n });\n }\n\n var innermostDefaultTitle = getInnermostProperty(propsList, HELMET_PROPS.DEFAULT_TITLE);\n return innermostTitle || innermostDefaultTitle || undefined;\n};\n\nvar getOnChangeClientState = function getOnChangeClientState(propsList) {\n return getInnermostProperty(propsList, HELMET_PROPS.ON_CHANGE_CLIENT_STATE) || function () {};\n};\n\nvar getAttributesFromPropsList = function getAttributesFromPropsList(tagType, propsList) {\n return propsList.filter(function (props) {\n return typeof props[tagType] !== \"undefined\";\n }).map(function (props) {\n return props[tagType];\n }).reduce(function (tagAttrs, current) {\n return _extends({}, tagAttrs, current);\n }, {});\n};\n\nvar getBaseTagFromPropsList = function getBaseTagFromPropsList(primaryAttributes, propsList) {\n return propsList.filter(function (props) {\n return typeof props[TAG_NAMES.BASE] !== \"undefined\";\n }).map(function (props) {\n return props[TAG_NAMES.BASE];\n }).reverse().reduce(function (innermostBaseTag, tag) {\n if (!innermostBaseTag.length) {\n var keys = Object.keys(tag);\n\n for (var i = 0; i < keys.length; i++) {\n var attributeKey = keys[i];\n var lowerCaseAttributeKey = attributeKey.toLowerCase();\n\n if (primaryAttributes.indexOf(lowerCaseAttributeKey) !== -1 && tag[lowerCaseAttributeKey]) {\n return innermostBaseTag.concat(tag);\n }\n }\n }\n\n return innermostBaseTag;\n }, []);\n};\n\nvar getTagsFromPropsList = function getTagsFromPropsList(tagName, primaryAttributes, propsList) {\n // Calculate list of tags, giving priority innermost component (end of the propslist)\n var approvedSeenTags = {};\n return propsList.filter(function (props) {\n if (Array.isArray(props[tagName])) {\n return true;\n }\n\n if (typeof props[tagName] !== \"undefined\") {\n warn(\"Helmet: \" + tagName + \" should be of type \\\"Array\\\". Instead found type \\\"\" + _typeof(props[tagName]) + \"\\\"\");\n }\n\n return false;\n }).map(function (props) {\n return props[tagName];\n }).reverse().reduce(function (approvedTags, instanceTags) {\n var instanceSeenTags = {};\n instanceTags.filter(function (tag) {\n var primaryAttributeKey = void 0;\n var keys = Object.keys(tag);\n\n for (var i = 0; i < keys.length; i++) {\n var attributeKey = keys[i];\n var lowerCaseAttributeKey = attributeKey.toLowerCase(); // Special rule with link tags, since rel and href are both primary tags, rel takes priority\n\n if (primaryAttributes.indexOf(lowerCaseAttributeKey) !== -1 && !(primaryAttributeKey === TAG_PROPERTIES.REL && tag[primaryAttributeKey].toLowerCase() === \"canonical\") && !(lowerCaseAttributeKey === TAG_PROPERTIES.REL && tag[lowerCaseAttributeKey].toLowerCase() === \"stylesheet\")) {\n primaryAttributeKey = lowerCaseAttributeKey;\n } // Special case for innerHTML which doesn't work lowercased\n\n\n if (primaryAttributes.indexOf(attributeKey) !== -1 && (attributeKey === TAG_PROPERTIES.INNER_HTML || attributeKey === TAG_PROPERTIES.CSS_TEXT || attributeKey === TAG_PROPERTIES.ITEM_PROP)) {\n primaryAttributeKey = attributeKey;\n }\n }\n\n if (!primaryAttributeKey || !tag[primaryAttributeKey]) {\n return false;\n }\n\n var value = tag[primaryAttributeKey].toLowerCase();\n\n if (!approvedSeenTags[primaryAttributeKey]) {\n approvedSeenTags[primaryAttributeKey] = {};\n }\n\n if (!instanceSeenTags[primaryAttributeKey]) {\n instanceSeenTags[primaryAttributeKey] = {};\n }\n\n if (!approvedSeenTags[primaryAttributeKey][value]) {\n instanceSeenTags[primaryAttributeKey][value] = true;\n return true;\n }\n\n return false;\n }).reverse().forEach(function (tag) {\n return approvedTags.push(tag);\n }); // Update seen tags with tags from this instance\n\n var keys = Object.keys(instanceSeenTags);\n\n for (var i = 0; i < keys.length; i++) {\n var attributeKey = keys[i];\n var tagUnion = objectAssign({}, approvedSeenTags[attributeKey], instanceSeenTags[attributeKey]);\n approvedSeenTags[attributeKey] = tagUnion;\n }\n\n return approvedTags;\n }, []).reverse();\n};\n\nvar getInnermostProperty = function getInnermostProperty(propsList, property) {\n for (var i = propsList.length - 1; i >= 0; i--) {\n var props = propsList[i];\n\n if (props.hasOwnProperty(property)) {\n return props[property];\n }\n }\n\n return null;\n};\n\nvar reducePropsToState = function reducePropsToState(propsList) {\n return {\n baseTag: getBaseTagFromPropsList([TAG_PROPERTIES.HREF, TAG_PROPERTIES.TARGET], propsList),\n bodyAttributes: getAttributesFromPropsList(ATTRIBUTE_NAMES.BODY, propsList),\n defer: getInnermostProperty(propsList, HELMET_PROPS.DEFER),\n encode: getInnermostProperty(propsList, HELMET_PROPS.ENCODE_SPECIAL_CHARACTERS),\n htmlAttributes: getAttributesFromPropsList(ATTRIBUTE_NAMES.HTML, propsList),\n linkTags: getTagsFromPropsList(TAG_NAMES.LINK, [TAG_PROPERTIES.REL, TAG_PROPERTIES.HREF], propsList),\n metaTags: getTagsFromPropsList(TAG_NAMES.META, [TAG_PROPERTIES.NAME, TAG_PROPERTIES.CHARSET, TAG_PROPERTIES.HTTPEQUIV, TAG_PROPERTIES.PROPERTY, TAG_PROPERTIES.ITEM_PROP], propsList),\n noscriptTags: getTagsFromPropsList(TAG_NAMES.NOSCRIPT, [TAG_PROPERTIES.INNER_HTML], propsList),\n onChangeClientState: getOnChangeClientState(propsList),\n scriptTags: getTagsFromPropsList(TAG_NAMES.SCRIPT, [TAG_PROPERTIES.SRC, TAG_PROPERTIES.INNER_HTML], propsList),\n styleTags: getTagsFromPropsList(TAG_NAMES.STYLE, [TAG_PROPERTIES.CSS_TEXT], propsList),\n title: getTitleFromPropsList(propsList),\n titleAttributes: getAttributesFromPropsList(ATTRIBUTE_NAMES.TITLE, propsList)\n };\n};\n\nvar rafPolyfill = function () {\n var clock = Date.now();\n return function (callback) {\n var currentTime = Date.now();\n\n if (currentTime - clock > 16) {\n clock = currentTime;\n callback(currentTime);\n } else {\n setTimeout(function () {\n rafPolyfill(callback);\n }, 0);\n }\n };\n}();\n\nvar cafPolyfill = function cafPolyfill(id) {\n return clearTimeout(id);\n};\n\nvar requestAnimationFrame = typeof window !== \"undefined\" ? window.requestAnimationFrame && window.requestAnimationFrame.bind(window) || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || rafPolyfill : global.requestAnimationFrame || rafPolyfill;\nvar cancelAnimationFrame = typeof window !== \"undefined\" ? window.cancelAnimationFrame || window.webkitCancelAnimationFrame || window.mozCancelAnimationFrame || cafPolyfill : global.cancelAnimationFrame || cafPolyfill;\n\nvar warn = function warn(msg) {\n return console && typeof console.warn === \"function\" && console.warn(msg);\n};\n\nvar _helmetCallback = null;\n\nvar handleClientStateChange = function handleClientStateChange(newState) {\n if (_helmetCallback) {\n cancelAnimationFrame(_helmetCallback);\n }\n\n if (newState.defer) {\n _helmetCallback = requestAnimationFrame(function () {\n commitTagChanges(newState, function () {\n _helmetCallback = null;\n });\n });\n } else {\n commitTagChanges(newState);\n _helmetCallback = null;\n }\n};\n\nvar commitTagChanges = function commitTagChanges(newState, cb) {\n var baseTag = newState.baseTag,\n bodyAttributes = newState.bodyAttributes,\n htmlAttributes = newState.htmlAttributes,\n linkTags = newState.linkTags,\n metaTags = newState.metaTags,\n noscriptTags = newState.noscriptTags,\n onChangeClientState = newState.onChangeClientState,\n scriptTags = newState.scriptTags,\n styleTags = newState.styleTags,\n title = newState.title,\n titleAttributes = newState.titleAttributes;\n updateAttributes(TAG_NAMES.BODY, bodyAttributes);\n updateAttributes(TAG_NAMES.HTML, htmlAttributes);\n updateTitle(title, titleAttributes);\n var tagUpdates = {\n baseTag: updateTags(TAG_NAMES.BASE, baseTag),\n linkTags: updateTags(TAG_NAMES.LINK, linkTags),\n metaTags: updateTags(TAG_NAMES.META, metaTags),\n noscriptTags: updateTags(TAG_NAMES.NOSCRIPT, noscriptTags),\n scriptTags: updateTags(TAG_NAMES.SCRIPT, scriptTags),\n styleTags: updateTags(TAG_NAMES.STYLE, styleTags)\n };\n var addedTags = {};\n var removedTags = {};\n Object.keys(tagUpdates).forEach(function (tagType) {\n var _tagUpdates$tagType = tagUpdates[tagType],\n newTags = _tagUpdates$tagType.newTags,\n oldTags = _tagUpdates$tagType.oldTags;\n\n if (newTags.length) {\n addedTags[tagType] = newTags;\n }\n\n if (oldTags.length) {\n removedTags[tagType] = tagUpdates[tagType].oldTags;\n }\n });\n cb && cb();\n onChangeClientState(newState, addedTags, removedTags);\n};\n\nvar flattenArray = function flattenArray(possibleArray) {\n return Array.isArray(possibleArray) ? possibleArray.join(\"\") : possibleArray;\n};\n\nvar updateTitle = function updateTitle(title, attributes) {\n if (typeof title !== \"undefined\" && document.title !== title) {\n document.title = flattenArray(title);\n }\n\n updateAttributes(TAG_NAMES.TITLE, attributes);\n};\n\nvar updateAttributes = function updateAttributes(tagName, attributes) {\n var elementTag = document.getElementsByTagName(tagName)[0];\n\n if (!elementTag) {\n return;\n }\n\n var helmetAttributeString = elementTag.getAttribute(HELMET_ATTRIBUTE);\n var helmetAttributes = helmetAttributeString ? helmetAttributeString.split(\",\") : [];\n var attributesToRemove = [].concat(helmetAttributes);\n var attributeKeys = Object.keys(attributes);\n\n for (var i = 0; i < attributeKeys.length; i++) {\n var attribute = attributeKeys[i];\n var value = attributes[attribute] || \"\";\n\n if (elementTag.getAttribute(attribute) !== value) {\n elementTag.setAttribute(attribute, value);\n }\n\n if (helmetAttributes.indexOf(attribute) === -1) {\n helmetAttributes.push(attribute);\n }\n\n var indexToSave = attributesToRemove.indexOf(attribute);\n\n if (indexToSave !== -1) {\n attributesToRemove.splice(indexToSave, 1);\n }\n }\n\n for (var _i = attributesToRemove.length - 1; _i >= 0; _i--) {\n elementTag.removeAttribute(attributesToRemove[_i]);\n }\n\n if (helmetAttributes.length === attributesToRemove.length) {\n elementTag.removeAttribute(HELMET_ATTRIBUTE);\n } else if (elementTag.getAttribute(HELMET_ATTRIBUTE) !== attributeKeys.join(\",\")) {\n elementTag.setAttribute(HELMET_ATTRIBUTE, attributeKeys.join(\",\"));\n }\n};\n\nvar updateTags = function updateTags(type, tags) {\n var headElement = document.head || document.querySelector(TAG_NAMES.HEAD);\n var tagNodes = headElement.querySelectorAll(type + \"[\" + HELMET_ATTRIBUTE + \"]\");\n var oldTags = Array.prototype.slice.call(tagNodes);\n var newTags = [];\n var indexToDelete = void 0;\n\n if (tags && tags.length) {\n tags.forEach(function (tag) {\n var newElement = document.createElement(type);\n\n for (var attribute in tag) {\n if (tag.hasOwnProperty(attribute)) {\n if (attribute === TAG_PROPERTIES.INNER_HTML) {\n newElement.innerHTML = tag.innerHTML;\n } else if (attribute === TAG_PROPERTIES.CSS_TEXT) {\n if (newElement.styleSheet) {\n newElement.styleSheet.cssText = tag.cssText;\n } else {\n newElement.appendChild(document.createTextNode(tag.cssText));\n }\n } else {\n var value = typeof tag[attribute] === \"undefined\" ? \"\" : tag[attribute];\n newElement.setAttribute(attribute, value);\n }\n }\n }\n\n newElement.setAttribute(HELMET_ATTRIBUTE, \"true\"); // Remove a duplicate tag from domTagstoRemove, so it isn't cleared.\n\n if (oldTags.some(function (existingTag, index) {\n indexToDelete = index;\n return newElement.isEqualNode(existingTag);\n })) {\n oldTags.splice(indexToDelete, 1);\n } else {\n newTags.push(newElement);\n }\n });\n }\n\n oldTags.forEach(function (tag) {\n return tag.parentNode.removeChild(tag);\n });\n newTags.forEach(function (tag) {\n return headElement.appendChild(tag);\n });\n return {\n oldTags: oldTags,\n newTags: newTags\n };\n};\n\nvar generateElementAttributesAsString = function generateElementAttributesAsString(attributes) {\n return Object.keys(attributes).reduce(function (str, key) {\n var attr = typeof attributes[key] !== \"undefined\" ? key + \"=\\\"\" + attributes[key] + \"\\\"\" : \"\" + key;\n return str ? str + \" \" + attr : attr;\n }, \"\");\n};\n\nvar generateTitleAsString = function generateTitleAsString(type, title, attributes, encode) {\n var attributeString = generateElementAttributesAsString(attributes);\n var flattenedTitle = flattenArray(title);\n return attributeString ? \"<\" + type + \" \" + HELMET_ATTRIBUTE + \"=\\\"true\\\" \" + attributeString + \">\" + encodeSpecialCharacters(flattenedTitle, encode) + \"\" : \"<\" + type + \" \" + HELMET_ATTRIBUTE + \"=\\\"true\\\">\" + encodeSpecialCharacters(flattenedTitle, encode) + \"\";\n};\n\nvar generateTagsAsString = function generateTagsAsString(type, tags, encode) {\n return tags.reduce(function (str, tag) {\n var attributeHtml = Object.keys(tag).filter(function (attribute) {\n return !(attribute === TAG_PROPERTIES.INNER_HTML || attribute === TAG_PROPERTIES.CSS_TEXT);\n }).reduce(function (string, attribute) {\n var attr = typeof tag[attribute] === \"undefined\" ? attribute : attribute + \"=\\\"\" + encodeSpecialCharacters(tag[attribute], encode) + \"\\\"\";\n return string ? string + \" \" + attr : attr;\n }, \"\");\n var tagContent = tag.innerHTML || tag.cssText || \"\";\n var isSelfClosing = SELF_CLOSING_TAGS.indexOf(type) === -1;\n return str + \"<\" + type + \" \" + HELMET_ATTRIBUTE + \"=\\\"true\\\" \" + attributeHtml + (isSelfClosing ? \"/>\" : \">\" + tagContent + \"\");\n }, \"\");\n};\n\nvar convertElementAttributestoReactProps = function convertElementAttributestoReactProps(attributes) {\n var initProps = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n return Object.keys(attributes).reduce(function (obj, key) {\n obj[REACT_TAG_MAP[key] || key] = attributes[key];\n return obj;\n }, initProps);\n};\n\nvar convertReactPropstoHtmlAttributes = function convertReactPropstoHtmlAttributes(props) {\n var initAttributes = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n return Object.keys(props).reduce(function (obj, key) {\n obj[HTML_TAG_MAP[key] || key] = props[key];\n return obj;\n }, initAttributes);\n};\n\nvar generateTitleAsReactComponent = function generateTitleAsReactComponent(type, title, attributes) {\n var _initProps; // assigning into an array to define toString function on it\n\n\n var initProps = (_initProps = {\n key: title\n }, _initProps[HELMET_ATTRIBUTE] = true, _initProps);\n var props = convertElementAttributestoReactProps(attributes, initProps);\n return [React.createElement(TAG_NAMES.TITLE, props, title)];\n};\n\nvar generateTagsAsReactComponent = function generateTagsAsReactComponent(type, tags) {\n return tags.map(function (tag, i) {\n var _mappedTag;\n\n var mappedTag = (_mappedTag = {\n key: i\n }, _mappedTag[HELMET_ATTRIBUTE] = true, _mappedTag);\n Object.keys(tag).forEach(function (attribute) {\n var mappedAttribute = REACT_TAG_MAP[attribute] || attribute;\n\n if (mappedAttribute === TAG_PROPERTIES.INNER_HTML || mappedAttribute === TAG_PROPERTIES.CSS_TEXT) {\n var content = tag.innerHTML || tag.cssText;\n mappedTag.dangerouslySetInnerHTML = {\n __html: content\n };\n } else {\n mappedTag[mappedAttribute] = tag[attribute];\n }\n });\n return React.createElement(type, mappedTag);\n });\n};\n\nvar getMethodsForTag = function getMethodsForTag(type, tags, encode) {\n switch (type) {\n case TAG_NAMES.TITLE:\n return {\n toComponent: function toComponent() {\n return generateTitleAsReactComponent(type, tags.title, tags.titleAttributes, encode);\n },\n toString: function toString() {\n return generateTitleAsString(type, tags.title, tags.titleAttributes, encode);\n }\n };\n\n case ATTRIBUTE_NAMES.BODY:\n case ATTRIBUTE_NAMES.HTML:\n return {\n toComponent: function toComponent() {\n return convertElementAttributestoReactProps(tags);\n },\n toString: function toString() {\n return generateElementAttributesAsString(tags);\n }\n };\n\n default:\n return {\n toComponent: function toComponent() {\n return generateTagsAsReactComponent(type, tags);\n },\n toString: function toString() {\n return generateTagsAsString(type, tags, encode);\n }\n };\n }\n};\n\nvar mapStateOnServer = function mapStateOnServer(_ref) {\n var baseTag = _ref.baseTag,\n bodyAttributes = _ref.bodyAttributes,\n encode = _ref.encode,\n htmlAttributes = _ref.htmlAttributes,\n linkTags = _ref.linkTags,\n metaTags = _ref.metaTags,\n noscriptTags = _ref.noscriptTags,\n scriptTags = _ref.scriptTags,\n styleTags = _ref.styleTags,\n _ref$title = _ref.title,\n title = _ref$title === undefined ? \"\" : _ref$title,\n titleAttributes = _ref.titleAttributes;\n return {\n base: getMethodsForTag(TAG_NAMES.BASE, baseTag, encode),\n bodyAttributes: getMethodsForTag(ATTRIBUTE_NAMES.BODY, bodyAttributes, encode),\n htmlAttributes: getMethodsForTag(ATTRIBUTE_NAMES.HTML, htmlAttributes, encode),\n link: getMethodsForTag(TAG_NAMES.LINK, linkTags, encode),\n meta: getMethodsForTag(TAG_NAMES.META, metaTags, encode),\n noscript: getMethodsForTag(TAG_NAMES.NOSCRIPT, noscriptTags, encode),\n script: getMethodsForTag(TAG_NAMES.SCRIPT, scriptTags, encode),\n style: getMethodsForTag(TAG_NAMES.STYLE, styleTags, encode),\n title: getMethodsForTag(TAG_NAMES.TITLE, {\n title: title,\n titleAttributes: titleAttributes\n }, encode)\n };\n};\n\nvar Helmet = function Helmet(Component) {\n var _class, _temp;\n\n return _temp = _class = function (_React$Component) {\n inherits(HelmetWrapper, _React$Component);\n\n function HelmetWrapper() {\n classCallCheck(this, HelmetWrapper);\n return possibleConstructorReturn(this, _React$Component.apply(this, arguments));\n }\n\n HelmetWrapper.prototype.shouldComponentUpdate = function shouldComponentUpdate(nextProps) {\n return !isEqual(this.props, nextProps);\n };\n\n HelmetWrapper.prototype.mapNestedChildrenToProps = function mapNestedChildrenToProps(child, nestedChildren) {\n if (!nestedChildren) {\n return null;\n }\n\n switch (child.type) {\n case TAG_NAMES.SCRIPT:\n case TAG_NAMES.NOSCRIPT:\n return {\n innerHTML: nestedChildren\n };\n\n case TAG_NAMES.STYLE:\n return {\n cssText: nestedChildren\n };\n }\n\n throw new Error(\"<\" + child.type + \" /> elements are self-closing and can not contain children. Refer to our API for more information.\");\n };\n\n HelmetWrapper.prototype.flattenArrayTypeChildren = function flattenArrayTypeChildren(_ref) {\n var _babelHelpers$extends;\n\n var child = _ref.child,\n arrayTypeChildren = _ref.arrayTypeChildren,\n newChildProps = _ref.newChildProps,\n nestedChildren = _ref.nestedChildren;\n return _extends({}, arrayTypeChildren, (_babelHelpers$extends = {}, _babelHelpers$extends[child.type] = [].concat(arrayTypeChildren[child.type] || [], [_extends({}, newChildProps, this.mapNestedChildrenToProps(child, nestedChildren))]), _babelHelpers$extends));\n };\n\n HelmetWrapper.prototype.mapObjectTypeChildren = function mapObjectTypeChildren(_ref2) {\n var _babelHelpers$extends2, _babelHelpers$extends3;\n\n var child = _ref2.child,\n newProps = _ref2.newProps,\n newChildProps = _ref2.newChildProps,\n nestedChildren = _ref2.nestedChildren;\n\n switch (child.type) {\n case TAG_NAMES.TITLE:\n return _extends({}, newProps, (_babelHelpers$extends2 = {}, _babelHelpers$extends2[child.type] = nestedChildren, _babelHelpers$extends2.titleAttributes = _extends({}, newChildProps), _babelHelpers$extends2));\n\n case TAG_NAMES.BODY:\n return _extends({}, newProps, {\n bodyAttributes: _extends({}, newChildProps)\n });\n\n case TAG_NAMES.HTML:\n return _extends({}, newProps, {\n htmlAttributes: _extends({}, newChildProps)\n });\n }\n\n return _extends({}, newProps, (_babelHelpers$extends3 = {}, _babelHelpers$extends3[child.type] = _extends({}, newChildProps), _babelHelpers$extends3));\n };\n\n HelmetWrapper.prototype.mapArrayTypeChildrenToProps = function mapArrayTypeChildrenToProps(arrayTypeChildren, newProps) {\n var newFlattenedProps = _extends({}, newProps);\n\n Object.keys(arrayTypeChildren).forEach(function (arrayChildName) {\n var _babelHelpers$extends4;\n\n newFlattenedProps = _extends({}, newFlattenedProps, (_babelHelpers$extends4 = {}, _babelHelpers$extends4[arrayChildName] = arrayTypeChildren[arrayChildName], _babelHelpers$extends4));\n });\n return newFlattenedProps;\n };\n\n HelmetWrapper.prototype.warnOnInvalidChildren = function warnOnInvalidChildren(child, nestedChildren) {\n if (process.env.NODE_ENV !== \"production\") {\n if (!VALID_TAG_NAMES.some(function (name) {\n return child.type === name;\n })) {\n if (typeof child.type === \"function\") {\n return warn(\"You may be attempting to nest components within each other, which is not allowed. Refer to our API for more information.\");\n }\n\n return warn(\"Only elements types \" + VALID_TAG_NAMES.join(\", \") + \" are allowed. Helmet does not support rendering <\" + child.type + \"> elements. Refer to our API for more information.\");\n }\n\n if (nestedChildren && typeof nestedChildren !== \"string\" && (!Array.isArray(nestedChildren) || nestedChildren.some(function (nestedChild) {\n return typeof nestedChild !== \"string\";\n }))) {\n throw new Error(\"Helmet expects a string as a child of <\" + child.type + \">. Did you forget to wrap your children in braces? ( <\" + child.type + \">{``} ) Refer to our API for more information.\");\n }\n }\n\n return true;\n };\n\n HelmetWrapper.prototype.mapChildrenToProps = function mapChildrenToProps(children, newProps) {\n var _this2 = this;\n\n var arrayTypeChildren = {};\n React.Children.forEach(children, function (child) {\n if (!child || !child.props) {\n return;\n }\n\n var _child$props = child.props,\n nestedChildren = _child$props.children,\n childProps = objectWithoutProperties(_child$props, [\"children\"]);\n var newChildProps = convertReactPropstoHtmlAttributes(childProps);\n\n _this2.warnOnInvalidChildren(child, nestedChildren);\n\n switch (child.type) {\n case TAG_NAMES.LINK:\n case TAG_NAMES.META:\n case TAG_NAMES.NOSCRIPT:\n case TAG_NAMES.SCRIPT:\n case TAG_NAMES.STYLE:\n arrayTypeChildren = _this2.flattenArrayTypeChildren({\n child: child,\n arrayTypeChildren: arrayTypeChildren,\n newChildProps: newChildProps,\n nestedChildren: nestedChildren\n });\n break;\n\n default:\n newProps = _this2.mapObjectTypeChildren({\n child: child,\n newProps: newProps,\n newChildProps: newChildProps,\n nestedChildren: nestedChildren\n });\n break;\n }\n });\n newProps = this.mapArrayTypeChildrenToProps(arrayTypeChildren, newProps);\n return newProps;\n };\n\n HelmetWrapper.prototype.render = function render() {\n var _props = this.props,\n children = _props.children,\n props = objectWithoutProperties(_props, [\"children\"]);\n\n var newProps = _extends({}, props);\n\n if (children) {\n newProps = this.mapChildrenToProps(children, newProps);\n }\n\n return React.createElement(Component, newProps);\n };\n\n createClass(HelmetWrapper, null, [{\n key: \"canUseDOM\",\n // Component.peek comes from react-side-effect:\n // For testing, you may use a static peek() method available on the returned component.\n // It lets you get the current state without resetting the mounted instance stack.\n // Don’t use it for anything other than testing.\n\n /**\n * @param {Object} base: {\"target\": \"_blank\", \"href\": \"http://mysite.com/\"}\n * @param {Object} bodyAttributes: {\"className\": \"root\"}\n * @param {String} defaultTitle: \"Default Title\"\n * @param {Boolean} defer: true\n * @param {Boolean} encodeSpecialCharacters: true\n * @param {Object} htmlAttributes: {\"lang\": \"en\", \"amp\": undefined}\n * @param {Array} link: [{\"rel\": \"canonical\", \"href\": \"http://mysite.com/example\"}]\n * @param {Array} meta: [{\"name\": \"description\", \"content\": \"Test description\"}]\n * @param {Array} noscript: [{\"innerHTML\": \" console.log(newState)\"\n * @param {Array} script: [{\"type\": \"text/javascript\", \"src\": \"http://mysite.com/js/test.js\"}]\n * @param {Array} style: [{\"type\": \"text/css\", \"cssText\": \"div { display: block; color: blue; }\"}]\n * @param {String} title: \"Title\"\n * @param {Object} titleAttributes: {\"itemprop\": \"name\"}\n * @param {String} titleTemplate: \"MySite.com - %s\"\n */\n set: function set$$1(canUseDOM) {\n Component.canUseDOM = canUseDOM;\n }\n }]);\n return HelmetWrapper;\n }(React.Component), _class.propTypes = {\n base: PropTypes.object,\n bodyAttributes: PropTypes.object,\n children: PropTypes.oneOfType([PropTypes.arrayOf(PropTypes.node), PropTypes.node]),\n defaultTitle: PropTypes.string,\n defer: PropTypes.bool,\n encodeSpecialCharacters: PropTypes.bool,\n htmlAttributes: PropTypes.object,\n link: PropTypes.arrayOf(PropTypes.object),\n meta: PropTypes.arrayOf(PropTypes.object),\n noscript: PropTypes.arrayOf(PropTypes.object),\n onChangeClientState: PropTypes.func,\n script: PropTypes.arrayOf(PropTypes.object),\n style: PropTypes.arrayOf(PropTypes.object),\n title: PropTypes.string,\n titleAttributes: PropTypes.object,\n titleTemplate: PropTypes.string\n }, _class.defaultProps = {\n defer: true,\n encodeSpecialCharacters: true\n }, _class.peek = Component.peek, _class.rewind = function () {\n var mappedState = Component.rewind();\n\n if (!mappedState) {\n // provide fallback if mappedState is undefined\n mappedState = mapStateOnServer({\n baseTag: [],\n bodyAttributes: {},\n encodeSpecialCharacters: true,\n htmlAttributes: {},\n linkTags: [],\n metaTags: [],\n noscriptTags: [],\n scriptTags: [],\n styleTags: [],\n title: \"\",\n titleAttributes: {}\n });\n }\n\n return mappedState;\n }, _temp;\n};\n\nvar NullComponent = function NullComponent() {\n return null;\n};\n\nvar HelmetSideEffects = withSideEffect(reducePropsToState, handleClientStateChange, mapStateOnServer)(NullComponent);\nvar HelmetExport = Helmet(HelmetSideEffects);\nHelmetExport.renderStatic = HelmetExport.rewind;\nexport default HelmetExport;\nexport { HelmetExport as Helmet };","'use strict';\n\nexports.decode = exports.parse = require('./decode');\nexports.encode = exports.stringify = require('./encode');"],"sourceRoot":""}