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= true;\nexports.Helmet = undefined;\n\nvar _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };\n\nvar _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();\n\nvar _react = require(\"react\");\n\nvar _react2 = _interopRequireDefault(_react);\n\nvar _propTypes = require(\"prop-types\");\n\nvar _propTypes2 = _interopRequireDefault(_propTypes);\n\nvar _reactSideEffect = require(\"react-side-effect\");\n\nvar _reactSideEffect2 = _interopRequireDefault(_reactSideEffect);\n\nvar _reactFastCompare = require(\"react-fast-compare\");\n\nvar _reactFastCompare2 = _interopRequireDefault(_reactFastCompare);\n\nvar _HelmetUtils = require(\"./HelmetUtils.js\");\n\nvar _HelmetConstants = require(\"./HelmetConstants.js\");\n\nfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }\n\nfunction _objectWithoutProperties(obj, keys) { var target = {}; for (var i in obj) { if (keys.indexOf(i) >= 0) continue; if (!Object.prototype.hasOwnProperty.call(obj, i)) continue; target[i] = obj[i]; } return target; }\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nfunction _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\"); } return call && (typeof call === \"object\" || typeof call === \"function\") ? call : self; }\n\nfunction _inherits(subClass, superClass) { if (typeof superClass !== \"function\" && superClass !== null) { throw new TypeError(\"Super expression must either be null or a function, not \" + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }\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\n            return _possibleConstructorReturn(this, _React$Component.apply(this, arguments));\n        }\n\n        HelmetWrapper.prototype.shouldComponentUpdate = function shouldComponentUpdate(nextProps) {\n            return !(0, _reactFastCompare2.default)(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 _HelmetConstants.TAG_NAMES.SCRIPT:\n                case _HelmetConstants.TAG_NAMES.NOSCRIPT:\n                    return {\n                        innerHTML: nestedChildren\n                    };\n\n                case _HelmetConstants.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 _extends2;\n\n            var child = _ref.child,\n                arrayTypeChildren = _ref.arrayTypeChildren,\n                newChildProps = _ref.newChildProps,\n                nestedChildren = _ref.nestedChildren;\n\n            return _extends({}, arrayTypeChildren, (_extends2 = {}, _extends2[child.type] = [].concat(arrayTypeChildren[child.type] || [], [_extends({}, newChildProps, this.mapNestedChildrenToProps(child, nestedChildren))]), _extends2));\n        };\n\n        HelmetWrapper.prototype.mapObjectTypeChildren = function mapObjectTypeChildren(_ref2) {\n            var _extends3, _extends4;\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 _HelmetConstants.TAG_NAMES.TITLE:\n                    return _extends({}, newProps, (_extends3 = {}, _extends3[child.type] = nestedChildren, _extends3.titleAttributes = _extends({}, newChildProps), _extends3));\n\n                case _HelmetConstants.TAG_NAMES.BODY:\n                    return _extends({}, newProps, {\n                        bodyAttributes: _extends({}, newChildProps)\n                    });\n\n                case _HelmetConstants.TAG_NAMES.HTML:\n                    return _extends({}, newProps, {\n                        htmlAttributes: _extends({}, newChildProps)\n                    });\n            }\n\n            return _extends({}, newProps, (_extends4 = {}, _extends4[child.type] = _extends({}, newChildProps), _extends4));\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 _extends5;\n\n                newFlattenedProps = _extends({}, newFlattenedProps, (_extends5 = {}, _extends5[arrayChildName] = arrayTypeChildren[arrayChildName], _extends5));\n            });\n\n            return newFlattenedProps;\n        };\n\n        HelmetWrapper.prototype.warnOnInvalidChildren = function warnOnInvalidChildren(child, nestedChildren) {\n            if (process.env.NODE_ENV !== \"production\") {\n                if (!_HelmetConstants.VALID_TAG_NAMES.some(function (name) {\n                    return child.type === name;\n                })) {\n                    if (typeof child.type === \"function\") {\n                        return (0, _HelmetUtils.warn)(\"You may be attempting to nest <Helmet> components within each other, which is not allowed. Refer to our API for more information.\");\n                    }\n\n                    return (0, _HelmetUtils.warn)(\"Only elements types \" + _HelmetConstants.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 + \">{``}</\" + 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\n            _react2.default.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\n                var newChildProps = (0, _HelmetUtils.convertReactPropstoHtmlAttributes)(childProps);\n\n                _this2.warnOnInvalidChildren(child, nestedChildren);\n\n                switch (child.type) {\n                    case _HelmetConstants.TAG_NAMES.LINK:\n                    case _HelmetConstants.TAG_NAMES.META:\n                    case _HelmetConstants.TAG_NAMES.NOSCRIPT:\n                    case _HelmetConstants.TAG_NAMES.SCRIPT:\n                    case _HelmetConstants.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\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 _react2.default.createElement(Component, newProps);\n        };\n\n        _createClass(HelmetWrapper, null, [{\n            key: \"canUseDOM\",\n\n\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\": \"<img src='http://mysite.com/js/test.js'\"}]\n             * @param {Function} onChangeClientState: \"(newState) => 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(canUseDOM) {\n                Component.canUseDOM = canUseDOM;\n            }\n        }]);\n\n        return HelmetWrapper;\n    }(_react2.default.Component), _class.propTypes = {\n        base: _propTypes2.default.object,\n        bodyAttributes: _propTypes2.default.object,\n        children: _propTypes2.default.oneOfType([_propTypes2.default.arrayOf(_propTypes2.default.node), _propTypes2.default.node]),\n        defaultTitle: _propTypes2.default.string,\n        defer: _propTypes2.default.bool,\n        encodeSpecialCharacters: _propTypes2.default.bool,\n        htmlAttributes: _propTypes2.default.object,\n        link: _propTypes2.default.arrayOf(_propTypes2.default.object),\n        meta: _propTypes2.default.arrayOf(_propTypes2.default.object),\n        noscript: _propTypes2.default.arrayOf(_propTypes2.default.object),\n        onChangeClientState: _propTypes2.default.func,\n        script: _propTypes2.default.arrayOf(_propTypes2.default.object),\n        style: _propTypes2.default.arrayOf(_propTypes2.default.object),\n        title: _propTypes2.default.string,\n        titleAttributes: _propTypes2.default.object,\n        titleTemplate: _propTypes2.default.string\n    }, _class.defaultProps = {\n        defer: true,\n        encodeSpecialCharacters: true\n    }, _class.peek = Component.peek, _class.rewind = function () {\n        var mappedState = Component.rewind();\n        if (!mappedState) {\n            // provide fallback if mappedState is undefined\n            mappedState = (0, _HelmetUtils.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 = (0, _reactSideEffect2.default)(_HelmetUtils.reducePropsToState, _HelmetUtils.handleClientStateChange, _HelmetUtils.mapStateOnServer)(NullComponent);\n\nvar HelmetExport = Helmet(HelmetSideEffects);\nHelmetExport.renderStatic = HelmetExport.rewind;\n\nexports.Helmet = HelmetExport;\nexports.default = HelmetExport;","exports.__esModule = true;\nvar ATTRIBUTE_NAMES = exports.ATTRIBUTE_NAMES = {\n    BODY: \"bodyAttributes\",\n    HTML: \"htmlAttributes\",\n    TITLE: \"titleAttributes\"\n};\n\nvar TAG_NAMES = exports.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};\n\nvar VALID_TAG_NAMES = exports.VALID_TAG_NAMES = Object.keys(TAG_NAMES).map(function (name) {\n    return TAG_NAMES[name];\n});\n\nvar TAG_PROPERTIES = exports.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};\n\nvar REACT_TAG_MAP = exports.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};\n\nvar HELMET_PROPS = exports.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};\n\nvar HTML_TAG_MAP = exports.HTML_TAG_MAP = Object.keys(REACT_TAG_MAP).reduce(function (obj, key) {\n    obj[REACT_TAG_MAP[key]] = key;\n    return obj;\n}, {});\n\nvar SELF_CLOSING_TAGS = exports.SELF_CLOSING_TAGS = [TAG_NAMES.NOSCRIPT, TAG_NAMES.SCRIPT, TAG_NAMES.STYLE];\n\nvar HELMET_ATTRIBUTE = exports.HELMET_ATTRIBUTE = \"data-react-helmet\";","exports.__esModule = true;\nexports.warn = exports.requestAnimationFrame = exports.reducePropsToState = exports.mapStateOnServer = exports.handleClientStateChange = exports.convertReactPropstoHtmlAttributes = undefined;\n\nvar _typeof = typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; };\n\nvar _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };\n\nvar _react = require(\"react\");\n\nvar _react2 = _interopRequireDefault(_react);\n\nvar _objectAssign = require(\"object-assign\");\n\nvar _objectAssign2 = _interopRequireDefault(_objectAssign);\n\nvar _HelmetConstants = require(\"./HelmetConstants.js\");\n\nfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }\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, \"&amp;\").replace(/</g, \"&lt;\").replace(/>/g, \"&gt;\").replace(/\"/g, \"&quot;\").replace(/'/g, \"&#x27;\");\n};\n\nvar getTitleFromPropsList = function getTitleFromPropsList(propsList) {\n    var innermostTitle = getInnermostProperty(propsList, _HelmetConstants.TAG_NAMES.TITLE);\n    var innermostTemplate = getInnermostProperty(propsList, _HelmetConstants.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 innermostTitle;\n        });\n    }\n\n    var innermostDefaultTitle = getInnermostProperty(propsList, _HelmetConstants.HELMET_PROPS.DEFAULT_TITLE);\n\n    return innermostTitle || innermostDefaultTitle || undefined;\n};\n\nvar getOnChangeClientState = function getOnChangeClientState(propsList) {\n    return getInnermostProperty(propsList, _HelmetConstants.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[_HelmetConstants.TAG_NAMES.BASE] !== \"undefined\";\n    }).map(function (props) {\n        return props[_HelmetConstants.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\n    return propsList.filter(function (props) {\n        if (Array.isArray(props[tagName])) {\n            return true;\n        }\n        if (typeof props[tagName] !== \"undefined\") {\n            warn(\"Helmet: \" + tagName + \" should be of type \\\"Array\\\". Instead found type \\\"\" + _typeof(props[tagName]) + \"\\\"\");\n        }\n        return false;\n    }).map(function (props) {\n        return props[tagName];\n    }).reverse().reduce(function (approvedTags, instanceTags) {\n        var instanceSeenTags = {};\n\n        instanceTags.filter(function (tag) {\n            var primaryAttributeKey = void 0;\n            var keys = Object.keys(tag);\n            for (var i = 0; i < keys.length; i++) {\n                var attributeKey = keys[i];\n                var lowerCaseAttributeKey = attributeKey.toLowerCase();\n\n                // Special rule with link tags, since rel and href are both primary tags, rel takes priority\n                if (primaryAttributes.indexOf(lowerCaseAttributeKey) !== -1 && !(primaryAttributeKey === _HelmetConstants.TAG_PROPERTIES.REL && tag[primaryAttributeKey].toLowerCase() === \"canonical\") && !(lowerCaseAttributeKey === _HelmetConstants.TAG_PROPERTIES.REL && tag[lowerCaseAttributeKey].toLowerCase() === \"stylesheet\")) {\n                    primaryAttributeKey = lowerCaseAttributeKey;\n                }\n                // Special case for innerHTML which doesn't work lowercased\n                if (primaryAttributes.indexOf(attributeKey) !== -1 && (attributeKey === _HelmetConstants.TAG_PROPERTIES.INNER_HTML || attributeKey === _HelmetConstants.TAG_PROPERTIES.CSS_TEXT || attributeKey === _HelmetConstants.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        });\n\n        // Update seen tags with tags from this instance\n        var keys = Object.keys(instanceSeenTags);\n        for (var i = 0; i < keys.length; i++) {\n            var attributeKey = keys[i];\n            var tagUnion = (0, _objectAssign2.default)({}, approvedSeenTags[attributeKey], instanceSeenTags[attributeKey]);\n\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([_HelmetConstants.TAG_PROPERTIES.HREF], propsList),\n        bodyAttributes: getAttributesFromPropsList(_HelmetConstants.ATTRIBUTE_NAMES.BODY, propsList),\n        defer: getInnermostProperty(propsList, _HelmetConstants.HELMET_PROPS.DEFER),\n        encode: getInnermostProperty(propsList, _HelmetConstants.HELMET_PROPS.ENCODE_SPECIAL_CHARACTERS),\n        htmlAttributes: getAttributesFromPropsList(_HelmetConstants.ATTRIBUTE_NAMES.HTML, propsList),\n        linkTags: getTagsFromPropsList(_HelmetConstants.TAG_NAMES.LINK, [_HelmetConstants.TAG_PROPERTIES.REL, _HelmetConstants.TAG_PROPERTIES.HREF], propsList),\n        metaTags: getTagsFromPropsList(_HelmetConstants.TAG_NAMES.META, [_HelmetConstants.TAG_PROPERTIES.NAME, _HelmetConstants.TAG_PROPERTIES.CHARSET, _HelmetConstants.TAG_PROPERTIES.HTTPEQUIV, _HelmetConstants.TAG_PROPERTIES.PROPERTY, _HelmetConstants.TAG_PROPERTIES.ITEM_PROP], propsList),\n        noscriptTags: getTagsFromPropsList(_HelmetConstants.TAG_NAMES.NOSCRIPT, [_HelmetConstants.TAG_PROPERTIES.INNER_HTML], propsList),\n        onChangeClientState: getOnChangeClientState(propsList),\n        scriptTags: getTagsFromPropsList(_HelmetConstants.TAG_NAMES.SCRIPT, [_HelmetConstants.TAG_PROPERTIES.SRC, _HelmetConstants.TAG_PROPERTIES.INNER_HTML], propsList),\n        styleTags: getTagsFromPropsList(_HelmetConstants.TAG_NAMES.STYLE, [_HelmetConstants.TAG_PROPERTIES.CSS_TEXT], propsList),\n        title: getTitleFromPropsList(propsList),\n        titleAttributes: getAttributesFromPropsList(_HelmetConstants.ATTRIBUTE_NAMES.TITLE, propsList)\n    };\n};\n\nvar rafPolyfill = function () {\n    var clock = Date.now();\n\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.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || rafPolyfill : global.requestAnimationFrame || rafPolyfill;\n\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\n    updateAttributes(_HelmetConstants.TAG_NAMES.BODY, bodyAttributes);\n    updateAttributes(_HelmetConstants.TAG_NAMES.HTML, htmlAttributes);\n\n    updateTitle(title, titleAttributes);\n\n    var tagUpdates = {\n        baseTag: updateTags(_HelmetConstants.TAG_NAMES.BASE, baseTag),\n        linkTags: updateTags(_HelmetConstants.TAG_NAMES.LINK, linkTags),\n        metaTags: updateTags(_HelmetConstants.TAG_NAMES.META, metaTags),\n        noscriptTags: updateTags(_HelmetConstants.TAG_NAMES.NOSCRIPT, noscriptTags),\n        scriptTags: updateTags(_HelmetConstants.TAG_NAMES.SCRIPT, scriptTags),\n        styleTags: updateTags(_HelmetConstants.TAG_NAMES.STYLE, styleTags)\n    };\n\n    var addedTags = {};\n    var removedTags = {};\n\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\n        if (newTags.length) {\n            addedTags[tagType] = newTags;\n        }\n        if (oldTags.length) {\n            removedTags[tagType] = tagUpdates[tagType].oldTags;\n        }\n    });\n\n    cb && cb();\n\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(_HelmetConstants.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(_HelmetConstants.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        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(_HelmetConstants.HELMET_ATTRIBUTE);\n    } else if (elementTag.getAttribute(_HelmetConstants.HELMET_ATTRIBUTE) !== attributeKeys.join(\",\")) {\n        elementTag.setAttribute(_HelmetConstants.HELMET_ATTRIBUTE, attributeKeys.join(\",\"));\n    }\n};\n\nvar updateTags = function updateTags(type, tags) {\n    var headElement = document.head || document.querySelector(_HelmetConstants.TAG_NAMES.HEAD);\n    var tagNodes = headElement.querySelectorAll(type + \"[\" + _HelmetConstants.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 === _HelmetConstants.TAG_PROPERTIES.INNER_HTML) {\n                        newElement.innerHTML = tag.innerHTML;\n                    } else if (attribute === _HelmetConstants.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(_HelmetConstants.HELMET_ATTRIBUTE, \"true\");\n\n            // Remove a duplicate tag from domTagstoRemove, so it isn't cleared.\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\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 + \" \" + _HelmetConstants.HELMET_ATTRIBUTE + \"=\\\"true\\\" \" + attributeString + \">\" + encodeSpecialCharacters(flattenedTitle, encode) + \"</\" + type + \">\" : \"<\" + type + \" \" + _HelmetConstants.HELMET_ATTRIBUTE + \"=\\\"true\\\">\" + encodeSpecialCharacters(flattenedTitle, encode) + \"</\" + type + \">\";\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 === _HelmetConstants.TAG_PROPERTIES.INNER_HTML || attribute === _HelmetConstants.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\n        var tagContent = tag.innerHTML || tag.cssText || \"\";\n\n        var isSelfClosing = _HelmetConstants.SELF_CLOSING_TAGS.indexOf(type) === -1;\n\n        return str + \"<\" + type + \" \" + _HelmetConstants.HELMET_ATTRIBUTE + \"=\\\"true\\\" \" + attributeHtml + (isSelfClosing ? \"/>\" : \">\" + tagContent + \"</\" + type + \">\");\n    }, \"\");\n};\n\nvar convertElementAttributestoReactProps = function convertElementAttributestoReactProps(attributes) {\n    var initProps = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n\n    return Object.keys(attributes).reduce(function (obj, key) {\n        obj[_HelmetConstants.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\n    return Object.keys(props).reduce(function (obj, key) {\n        obj[_HelmetConstants.HTML_TAG_MAP[key] || key] = props[key];\n        return obj;\n    }, initAttributes);\n};\n\nvar generateTitleAsReactComponent = function generateTitleAsReactComponent(type, title, attributes) {\n    var _initProps;\n\n    // assigning into an array to define toString function on it\n    var initProps = (_initProps = {\n        key: title\n    }, _initProps[_HelmetConstants.HELMET_ATTRIBUTE] = true, _initProps);\n    var props = convertElementAttributestoReactProps(attributes, initProps);\n\n    return [_react2.default.createElement(_HelmetConstants.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[_HelmetConstants.HELMET_ATTRIBUTE] = true, _mappedTag);\n\n        Object.keys(tag).forEach(function (attribute) {\n            var mappedAttribute = _HelmetConstants.REACT_TAG_MAP[attribute] || attribute;\n\n            if (mappedAttribute === _HelmetConstants.TAG_PROPERTIES.INNER_HTML || mappedAttribute === _HelmetConstants.TAG_PROPERTIES.CSS_TEXT) {\n                var content = tag.innerHTML || tag.cssText;\n                mappedTag.dangerouslySetInnerHTML = { __html: content };\n            } else {\n                mappedTag[mappedAttribute] = tag[attribute];\n            }\n        });\n\n        return _react2.default.createElement(type, mappedTag);\n    });\n};\n\nvar getMethodsForTag = function getMethodsForTag(type, tags, encode) {\n    switch (type) {\n        case _HelmetConstants.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        case _HelmetConstants.ATTRIBUTE_NAMES.BODY:\n        case _HelmetConstants.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        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(_HelmetConstants.TAG_NAMES.BASE, baseTag, encode),\n        bodyAttributes: getMethodsForTag(_HelmetConstants.ATTRIBUTE_NAMES.BODY, bodyAttributes, encode),\n        htmlAttributes: getMethodsForTag(_HelmetConstants.ATTRIBUTE_NAMES.HTML, htmlAttributes, encode),\n        link: getMethodsForTag(_HelmetConstants.TAG_NAMES.LINK, linkTags, encode),\n        meta: getMethodsForTag(_HelmetConstants.TAG_NAMES.META, metaTags, encode),\n        noscript: getMethodsForTag(_HelmetConstants.TAG_NAMES.NOSCRIPT, noscriptTags, encode),\n        script: getMethodsForTag(_HelmetConstants.TAG_NAMES.SCRIPT, scriptTags, encode),\n        style: getMethodsForTag(_HelmetConstants.TAG_NAMES.STYLE, styleTags, encode),\n        title: getMethodsForTag(_HelmetConstants.TAG_NAMES.TITLE, { title: title, titleAttributes: titleAttributes }, encode)\n    };\n};\n\nexports.convertReactPropstoHtmlAttributes = convertReactPropstoHtmlAttributes;\nexports.handleClientStateChange = handleClientStateChange;\nexports.mapStateOnServer = mapStateOnServer;\nexports.reducePropsToState = reducePropsToState;\nexports.requestAnimationFrame = requestAnimationFrame;\nexports.warn = warn;"],"sourceRoot":""}