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(typeof Object.create === 'function') {\n  // implementation from standard node.js 'util' module\n  module.exports = function inherits(ctor, superCtor) {\n    if (superCtor) {\n      ctor.super_ = superCtor\n      ctor.prototype = Object.create(superCtor.prototype, {\n        constructor: {\n          value: ctor,\n          enumerable: false,\n          writable: true,\n          configurable: true\n        }\n      })\n    }\n  };\n} else {\n  // old school shim for old browsers\n  module.exports = function inherits(ctor, superCtor) {\n    if (superCtor) {\n      ctor.super_ = superCtor\n      var TempCtor = function () {}\n      TempCtor.prototype = superCtor.prototype\n      ctor.prototype = new TempCtor()\n      ctor.prototype.constructor = ctor\n    }\n  }\n}\n","/**\n * Copyright 2016 Google Inc. All Rights Reserved.\n *\n * Licensed under the W3C SOFTWARE AND DOCUMENT NOTICE AND LICENSE.\n *\n *  https://www.w3.org/Consortium/Legal/2015/copyright-software-and-document\n *\n */\n(function() {\n'use strict';\n\n// Exit early if we're not running in a browser.\nif (typeof window !== 'object') {\n  return;\n}\n\n// Exit early if all IntersectionObserver and IntersectionObserverEntry\n// features are natively supported.\nif ('IntersectionObserver' in window &&\n    'IntersectionObserverEntry' in window &&\n    'intersectionRatio' in window.IntersectionObserverEntry.prototype) {\n\n  // Minimal polyfill for Edge 15's lack of `isIntersecting`\n  // See: https://github.com/w3c/IntersectionObserver/issues/211\n  if (!('isIntersecting' in window.IntersectionObserverEntry.prototype)) {\n    Object.defineProperty(window.IntersectionObserverEntry.prototype,\n      'isIntersecting', {\n      get: function () {\n        return this.intersectionRatio > 0;\n      }\n    });\n  }\n  return;\n}\n\n/**\n * Returns the embedding frame element, if any.\n * @param {!Document} doc\n * @return {!Element}\n */\nfunction getFrameElement(doc) {\n  try {\n    return doc.defaultView && doc.defaultView.frameElement || null;\n  } catch (e) {\n    // Ignore the error.\n    return null;\n  }\n}\n\n/**\n * A local reference to the root document.\n */\nvar document = (function(startDoc) {\n  var doc = startDoc;\n  var frame = getFrameElement(doc);\n  while (frame) {\n    doc = frame.ownerDocument;\n    frame = getFrameElement(doc);\n  }\n  return doc;\n})(window.document);\n\n/**\n * An IntersectionObserver registry. This registry exists to hold a strong\n * reference to IntersectionObserver instances currently observing a target\n * element. Without this registry, instances without another reference may be\n * garbage collected.\n */\nvar registry = [];\n\n/**\n * The signal updater for cross-origin intersection. When not null, it means\n * that the polyfill is configured to work in a cross-origin mode.\n * @type {function(DOMRect|ClientRect, DOMRect|ClientRect)}\n */\nvar crossOriginUpdater = null;\n\n/**\n * The current cross-origin intersection. Only used in the cross-origin mode.\n * @type {DOMRect|ClientRect}\n */\nvar crossOriginRect = null;\n\n\n/**\n * Creates the global IntersectionObserverEntry constructor.\n * https://w3c.github.io/IntersectionObserver/#intersection-observer-entry\n * @param {Object} entry A dictionary of instance properties.\n * @constructor\n */\nfunction IntersectionObserverEntry(entry) {\n  this.time = entry.time;\n  this.target = entry.target;\n  this.rootBounds = ensureDOMRect(entry.rootBounds);\n  this.boundingClientRect = ensureDOMRect(entry.boundingClientRect);\n  this.intersectionRect = ensureDOMRect(entry.intersectionRect || getEmptyRect());\n  this.isIntersecting = !!entry.intersectionRect;\n\n  // Calculates the intersection ratio.\n  var targetRect = this.boundingClientRect;\n  var targetArea = targetRect.width * targetRect.height;\n  var intersectionRect = this.intersectionRect;\n  var intersectionArea = intersectionRect.width * intersectionRect.height;\n\n  // Sets intersection ratio.\n  if (targetArea) {\n    // Round the intersection ratio to avoid floating point math issues:\n    // https://github.com/w3c/IntersectionObserver/issues/324\n    this.intersectionRatio = Number((intersectionArea / targetArea).toFixed(4));\n  } else {\n    // If area is zero and is intersecting, sets to 1, otherwise to 0\n    this.intersectionRatio = this.isIntersecting ? 1 : 0;\n  }\n}\n\n\n/**\n * Creates the global IntersectionObserver constructor.\n * https://w3c.github.io/IntersectionObserver/#intersection-observer-interface\n * @param {Function} callback The function to be invoked after intersection\n *     changes have queued. The function is not invoked if the queue has\n *     been emptied by calling the `takeRecords` method.\n * @param {Object=} opt_options Optional configuration options.\n * @constructor\n */\nfunction IntersectionObserver(callback, opt_options) {\n\n  var options = opt_options || {};\n\n  if (typeof callback != 'function') {\n    throw new Error('callback must be a function');\n  }\n\n  if (\n    options.root &&\n    options.root.nodeType != 1 &&\n    options.root.nodeType != 9\n  ) {\n    throw new Error('root must be a Document or Element');\n  }\n\n  // Binds and throttles `this._checkForIntersections`.\n  this._checkForIntersections = throttle(\n      this._checkForIntersections.bind(this), this.THROTTLE_TIMEOUT);\n\n  // Private properties.\n  this._callback = callback;\n  this._observationTargets = [];\n  this._queuedEntries = [];\n  this._rootMarginValues = this._parseRootMargin(options.rootMargin);\n\n  // Public properties.\n  this.thresholds = this._initThresholds(options.threshold);\n  this.root = options.root || null;\n  this.rootMargin = this._rootMarginValues.map(function(margin) {\n    return margin.value + margin.unit;\n  }).join(' ');\n\n  /** @private @const {!Array<!Document>} */\n  this._monitoringDocuments = [];\n  /** @private @const {!Array<function()>} */\n  this._monitoringUnsubscribes = [];\n}\n\n\n/**\n * The minimum interval within which the document will be checked for\n * intersection changes.\n */\nIntersectionObserver.prototype.THROTTLE_TIMEOUT = 100;\n\n\n/**\n * The frequency in which the polyfill polls for intersection changes.\n * this can be updated on a per instance basis and must be set prior to\n * calling `observe` on the first target.\n */\nIntersectionObserver.prototype.POLL_INTERVAL = null;\n\n/**\n * Use a mutation observer on the root element\n * to detect intersection changes.\n */\nIntersectionObserver.prototype.USE_MUTATION_OBSERVER = true;\n\n\n/**\n * Sets up the polyfill in the cross-origin mode. The result is the\n * updater function that accepts two arguments: `boundingClientRect` and\n * `intersectionRect` - just as these fields would be available to the\n * parent via `IntersectionObserverEntry`. This function should be called\n * each time the iframe receives intersection information from the parent\n * window, e.g. via messaging.\n * @return {function(DOMRect|ClientRect, DOMRect|ClientRect)}\n */\nIntersectionObserver._setupCrossOriginUpdater = function() {\n  if (!crossOriginUpdater) {\n    /**\n     * @param {DOMRect|ClientRect} boundingClientRect\n     * @param {DOMRect|ClientRect} intersectionRect\n     */\n    crossOriginUpdater = function(boundingClientRect, intersectionRect) {\n      if (!boundingClientRect || !intersectionRect) {\n        crossOriginRect = getEmptyRect();\n      } else {\n        crossOriginRect = convertFromParentRect(boundingClientRect, intersectionRect);\n      }\n      registry.forEach(function(observer) {\n        observer._checkForIntersections();\n      });\n    };\n  }\n  return crossOriginUpdater;\n};\n\n\n/**\n * Resets the cross-origin mode.\n */\nIntersectionObserver._resetCrossOriginUpdater = function() {\n  crossOriginUpdater = null;\n  crossOriginRect = null;\n};\n\n\n/**\n * Starts observing a target element for intersection changes based on\n * the thresholds values.\n * @param {Element} target The DOM element to observe.\n */\nIntersectionObserver.prototype.observe = function(target) {\n  var isTargetAlreadyObserved = this._observationTargets.some(function(item) {\n    return item.element == target;\n  });\n\n  if (isTargetAlreadyObserved) {\n    return;\n  }\n\n  if (!(target && target.nodeType == 1)) {\n    throw new Error('target must be an Element');\n  }\n\n  this._registerInstance();\n  this._observationTargets.push({element: target, entry: null});\n  this._monitorIntersections(target.ownerDocument);\n  this._checkForIntersections();\n};\n\n\n/**\n * Stops observing a target element for intersection changes.\n * @param {Element} target The DOM element to observe.\n */\nIntersectionObserver.prototype.unobserve = function(target) {\n  this._observationTargets =\n      this._observationTargets.filter(function(item) {\n        return item.element != target;\n      });\n  this._unmonitorIntersections(target.ownerDocument);\n  if (this._observationTargets.length == 0) {\n    this._unregisterInstance();\n  }\n};\n\n\n/**\n * Stops observing all target elements for intersection changes.\n */\nIntersectionObserver.prototype.disconnect = function() {\n  this._observationTargets = [];\n  this._unmonitorAllIntersections();\n  this._unregisterInstance();\n};\n\n\n/**\n * Returns any queue entries that have not yet been reported to the\n * callback and clears the queue. This can be used in conjunction with the\n * callback to obtain the absolute most up-to-date intersection information.\n * @return {Array} The currently queued entries.\n */\nIntersectionObserver.prototype.takeRecords = function() {\n  var records = this._queuedEntries.slice();\n  this._queuedEntries = [];\n  return records;\n};\n\n\n/**\n * Accepts the threshold value from the user configuration object and\n * returns a sorted array of unique threshold values. If a value is not\n * between 0 and 1 and error is thrown.\n * @private\n * @param {Array|number=} opt_threshold An optional threshold value or\n *     a list of threshold values, defaulting to [0].\n * @return {Array} A sorted list of unique and valid threshold values.\n */\nIntersectionObserver.prototype._initThresholds = function(opt_threshold) {\n  var threshold = opt_threshold || [0];\n  if (!Array.isArray(threshold)) threshold = [threshold];\n\n  return threshold.sort().filter(function(t, i, a) {\n    if (typeof t != 'number' || isNaN(t) || t < 0 || t > 1) {\n      throw new Error('threshold must be a number between 0 and 1 inclusively');\n    }\n    return t !== a[i - 1];\n  });\n};\n\n\n/**\n * Accepts the rootMargin value from the user configuration object\n * and returns an array of the four margin values as an object containing\n * the value and unit properties. If any of the values are not properly\n * formatted or use a unit other than px or %, and error is thrown.\n * @private\n * @param {string=} opt_rootMargin An optional rootMargin value,\n *     defaulting to '0px'.\n * @return {Array<Object>} An array of margin objects with the keys\n *     value and unit.\n */\nIntersectionObserver.prototype._parseRootMargin = function(opt_rootMargin) {\n  var marginString = opt_rootMargin || '0px';\n  var margins = marginString.split(/\\s+/).map(function(margin) {\n    var parts = /^(-?\\d*\\.?\\d+)(px|%)$/.exec(margin);\n    if (!parts) {\n      throw new Error('rootMargin must be specified in pixels or percent');\n    }\n    return {value: parseFloat(parts[1]), unit: parts[2]};\n  });\n\n  // Handles shorthand.\n  margins[1] = margins[1] || margins[0];\n  margins[2] = margins[2] || margins[0];\n  margins[3] = margins[3] || margins[1];\n\n  return margins;\n};\n\n\n/**\n * Starts polling for intersection changes if the polling is not already\n * happening, and if the page's visibility state is visible.\n * @param {!Document} doc\n * @private\n */\nIntersectionObserver.prototype._monitorIntersections = function(doc) {\n  var win = doc.defaultView;\n  if (!win) {\n    // Already destroyed.\n    return;\n  }\n  if (this._monitoringDocuments.indexOf(doc) != -1) {\n    // Already monitoring.\n    return;\n  }\n\n  // Private state for monitoring.\n  var callback = this._checkForIntersections;\n  var monitoringInterval = null;\n  var domObserver = null;\n\n  // If a poll interval is set, use polling instead of listening to\n  // resize and scroll events or DOM mutations.\n  if (this.POLL_INTERVAL) {\n    monitoringInterval = win.setInterval(callback, this.POLL_INTERVAL);\n  } else {\n    addEvent(win, 'resize', callback, true);\n    addEvent(doc, 'scroll', callback, true);\n    if (this.USE_MUTATION_OBSERVER && 'MutationObserver' in win) {\n      domObserver = new win.MutationObserver(callback);\n      domObserver.observe(doc, {\n        attributes: true,\n        childList: true,\n        characterData: true,\n        subtree: true\n      });\n    }\n  }\n\n  this._monitoringDocuments.push(doc);\n  this._monitoringUnsubscribes.push(function() {\n    // Get the window object again. When a friendly iframe is destroyed, it\n    // will be null.\n    var win = doc.defaultView;\n\n    if (win) {\n      if (monitoringInterval) {\n        win.clearInterval(monitoringInterval);\n      }\n      removeEvent(win, 'resize', callback, true);\n    }\n\n    removeEvent(doc, 'scroll', callback, true);\n    if (domObserver) {\n      domObserver.disconnect();\n    }\n  });\n\n  // Also monitor the parent.\n  var rootDoc =\n    (this.root && (this.root.ownerDocument || this.root)) || document;\n  if (doc != rootDoc) {\n    var frame = getFrameElement(doc);\n    if (frame) {\n      this._monitorIntersections(frame.ownerDocument);\n    }\n  }\n};\n\n\n/**\n * Stops polling for intersection changes.\n * @param {!Document} doc\n * @private\n */\nIntersectionObserver.prototype._unmonitorIntersections = function(doc) {\n  var index = this._monitoringDocuments.indexOf(doc);\n  if (index == -1) {\n    return;\n  }\n\n  var rootDoc =\n    (this.root && (this.root.ownerDocument || this.root)) || document;\n\n  // Check if any dependent targets are still remaining.\n  var hasDependentTargets =\n      this._observationTargets.some(function(item) {\n        var itemDoc = item.element.ownerDocument;\n        // Target is in this context.\n        if (itemDoc == doc) {\n          return true;\n        }\n        // Target is nested in this context.\n        while (itemDoc && itemDoc != rootDoc) {\n          var frame = getFrameElement(itemDoc);\n          itemDoc = frame && frame.ownerDocument;\n          if (itemDoc == doc) {\n            return true;\n          }\n        }\n        return false;\n      });\n  if (hasDependentTargets) {\n    return;\n  }\n\n  // Unsubscribe.\n  var unsubscribe = this._monitoringUnsubscribes[index];\n  this._monitoringDocuments.splice(index, 1);\n  this._monitoringUnsubscribes.splice(index, 1);\n  unsubscribe();\n\n  // Also unmonitor the parent.\n  if (doc != rootDoc) {\n    var frame = getFrameElement(doc);\n    if (frame) {\n      this._unmonitorIntersections(frame.ownerDocument);\n    }\n  }\n};\n\n\n/**\n * Stops polling for intersection changes.\n * @param {!Document} doc\n * @private\n */\nIntersectionObserver.prototype._unmonitorAllIntersections = function() {\n  var unsubscribes = this._monitoringUnsubscribes.slice(0);\n  this._monitoringDocuments.length = 0;\n  this._monitoringUnsubscribes.length = 0;\n  for (var i = 0; i < unsubscribes.length; i++) {\n    unsubscribes[i]();\n  }\n};\n\n\n/**\n * Scans each observation target for intersection changes and adds them\n * to the internal entries queue. If new entries are found, it\n * schedules the callback to be invoked.\n * @private\n */\nIntersectionObserver.prototype._checkForIntersections = function() {\n  if (!this.root && crossOriginUpdater && !crossOriginRect) {\n    // Cross origin monitoring, but no initial data available yet.\n    return;\n  }\n\n  var rootIsInDom = this._rootIsInDom();\n  var rootRect = rootIsInDom ? this._getRootRect() : getEmptyRect();\n\n  this._observationTargets.forEach(function(item) {\n    var target = item.element;\n    var targetRect = getBoundingClientRect(target);\n    var rootContainsTarget = this._rootContainsTarget(target);\n    var oldEntry = item.entry;\n    var intersectionRect = rootIsInDom && rootContainsTarget &&\n        this._computeTargetAndRootIntersection(target, targetRect, rootRect);\n\n    var rootBounds = null;\n    if (!this._rootContainsTarget(target)) {\n      rootBounds = getEmptyRect();\n    } else if (!crossOriginUpdater || this.root) {\n      rootBounds = rootRect;\n    }\n\n    var newEntry = item.entry = new IntersectionObserverEntry({\n      time: now(),\n      target: target,\n      boundingClientRect: targetRect,\n      rootBounds: rootBounds,\n      intersectionRect: intersectionRect\n    });\n\n    if (!oldEntry) {\n      this._queuedEntries.push(newEntry);\n    } else if (rootIsInDom && rootContainsTarget) {\n      // If the new entry intersection ratio has crossed any of the\n      // thresholds, add a new entry.\n      if (this._hasCrossedThreshold(oldEntry, newEntry)) {\n        this._queuedEntries.push(newEntry);\n      }\n    } else {\n      // If the root is not in the DOM or target is not contained within\n      // root but the previous entry for this target had an intersection,\n      // add a new record indicating removal.\n      if (oldEntry && oldEntry.isIntersecting) {\n        this._queuedEntries.push(newEntry);\n      }\n    }\n  }, this);\n\n  if (this._queuedEntries.length) {\n    this._callback(this.takeRecords(), this);\n  }\n};\n\n\n/**\n * Accepts a target and root rect computes the intersection between then\n * following the algorithm in the spec.\n * TODO(philipwalton): at this time clip-path is not considered.\n * https://w3c.github.io/IntersectionObserver/#calculate-intersection-rect-algo\n * @param {Element} target The target DOM element\n * @param {Object} targetRect The bounding rect of the target.\n * @param {Object} rootRect The bounding rect of the root after being\n *     expanded by the rootMargin value.\n * @return {?Object} The final intersection rect object or undefined if no\n *     intersection is found.\n * @private\n */\nIntersectionObserver.prototype._computeTargetAndRootIntersection =\n    function(target, targetRect, rootRect) {\n  // If the element isn't displayed, an intersection can't happen.\n  if (window.getComputedStyle(target).display == 'none') return;\n\n  var intersectionRect = targetRect;\n  var parent = getParentNode(target);\n  var atRoot = false;\n\n  while (!atRoot && parent) {\n    var parentRect = null;\n    var parentComputedStyle = parent.nodeType == 1 ?\n        window.getComputedStyle(parent) : {};\n\n    // If the parent isn't displayed, an intersection can't happen.\n    if (parentComputedStyle.display == 'none') return null;\n\n    if (parent == this.root || parent.nodeType == /* DOCUMENT */ 9) {\n      atRoot = true;\n      if (parent == this.root || parent == document) {\n        if (crossOriginUpdater && !this.root) {\n          if (!crossOriginRect ||\n              crossOriginRect.width == 0 && crossOriginRect.height == 0) {\n            // A 0-size cross-origin intersection means no-intersection.\n            parent = null;\n            parentRect = null;\n            intersectionRect = null;\n          } else {\n            parentRect = crossOriginRect;\n          }\n        } else {\n          parentRect = rootRect;\n        }\n      } else {\n        // Check if there's a frame that can be navigated to.\n        var frame = getParentNode(parent);\n        var frameRect = frame && getBoundingClientRect(frame);\n        var frameIntersect =\n            frame &&\n            this._computeTargetAndRootIntersection(frame, frameRect, rootRect);\n        if (frameRect && frameIntersect) {\n          parent = frame;\n          parentRect = convertFromParentRect(frameRect, frameIntersect);\n        } else {\n          parent = null;\n          intersectionRect = null;\n        }\n      }\n    } else {\n      // If the element has a non-visible overflow, and it's not the <body>\n      // or <html> element, update the intersection rect.\n      // Note: <body> and <html> cannot be clipped to a rect that's not also\n      // the document rect, so no need to compute a new intersection.\n      var doc = parent.ownerDocument;\n      if (parent != doc.body &&\n          parent != doc.documentElement &&\n          parentComputedStyle.overflow != 'visible') {\n        parentRect = getBoundingClientRect(parent);\n      }\n    }\n\n    // If either of the above conditionals set a new parentRect,\n    // calculate new intersection data.\n    if (parentRect) {\n      intersectionRect = computeRectIntersection(parentRect, intersectionRect);\n    }\n    if (!intersectionRect) break;\n    parent = parent && getParentNode(parent);\n  }\n  return intersectionRect;\n};\n\n\n/**\n * Returns the root rect after being expanded by the rootMargin value.\n * @return {ClientRect} The expanded root rect.\n * @private\n */\nIntersectionObserver.prototype._getRootRect = function() {\n  var rootRect;\n  if (this.root && !isDoc(this.root)) {\n    rootRect = getBoundingClientRect(this.root);\n  } else {\n    // Use <html>/<body> instead of window since scroll bars affect size.\n    var doc = isDoc(this.root) ? this.root : document;\n    var html = doc.documentElement;\n    var body = doc.body;\n    rootRect = {\n      top: 0,\n      left: 0,\n      right: html.clientWidth || body.clientWidth,\n      width: html.clientWidth || body.clientWidth,\n      bottom: html.clientHeight || body.clientHeight,\n      height: html.clientHeight || body.clientHeight\n    };\n  }\n  return this._expandRectByRootMargin(rootRect);\n};\n\n\n/**\n * Accepts a rect and expands it by the rootMargin value.\n * @param {DOMRect|ClientRect} rect The rect object to expand.\n * @return {ClientRect} The expanded rect.\n * @private\n */\nIntersectionObserver.prototype._expandRectByRootMargin = function(rect) {\n  var margins = this._rootMarginValues.map(function(margin, i) {\n    return margin.unit == 'px' ? margin.value :\n        margin.value * (i % 2 ? rect.width : rect.height) / 100;\n  });\n  var newRect = {\n    top: rect.top - margins[0],\n    right: rect.right + margins[1],\n    bottom: rect.bottom + margins[2],\n    left: rect.left - margins[3]\n  };\n  newRect.width = newRect.right - newRect.left;\n  newRect.height = newRect.bottom - newRect.top;\n\n  return newRect;\n};\n\n\n/**\n * Accepts an old and new entry and returns true if at least one of the\n * threshold values has been crossed.\n * @param {?IntersectionObserverEntry} oldEntry The previous entry for a\n *    particular target element or null if no previous entry exists.\n * @param {IntersectionObserverEntry} newEntry The current entry for a\n *    particular target element.\n * @return {boolean} Returns true if a any threshold has been crossed.\n * @private\n */\nIntersectionObserver.prototype._hasCrossedThreshold =\n    function(oldEntry, newEntry) {\n\n  // To make comparing easier, an entry that has a ratio of 0\n  // but does not actually intersect is given a value of -1\n  var oldRatio = oldEntry && oldEntry.isIntersecting ?\n      oldEntry.intersectionRatio || 0 : -1;\n  var newRatio = newEntry.isIntersecting ?\n      newEntry.intersectionRatio || 0 : -1;\n\n  // Ignore unchanged ratios\n  if (oldRatio === newRatio) return;\n\n  for (var i = 0; i < this.thresholds.length; i++) {\n    var threshold = this.thresholds[i];\n\n    // Return true if an entry matches a threshold or if the new ratio\n    // and the old ratio are on the opposite sides of a threshold.\n    if (threshold == oldRatio || threshold == newRatio ||\n        threshold < oldRatio !== threshold < newRatio) {\n      return true;\n    }\n  }\n};\n\n\n/**\n * Returns whether or not the root element is an element and is in the DOM.\n * @return {boolean} True if the root element is an element and is in the DOM.\n * @private\n */\nIntersectionObserver.prototype._rootIsInDom = function() {\n  return !this.root || containsDeep(document, this.root);\n};\n\n\n/**\n * Returns whether or not the target element is a child of root.\n * @param {Element} target The target element to check.\n * @return {boolean} True if the target element is a child of root.\n * @private\n */\nIntersectionObserver.prototype._rootContainsTarget = function(target) {\n  var rootDoc =\n    (this.root && (this.root.ownerDocument || this.root)) || document;\n  return (\n    containsDeep(rootDoc, target) &&\n    (!this.root || rootDoc == target.ownerDocument)\n  );\n};\n\n\n/**\n * Adds the instance to the global IntersectionObserver registry if it isn't\n * already present.\n * @private\n */\nIntersectionObserver.prototype._registerInstance = function() {\n  if (registry.indexOf(this) < 0) {\n    registry.push(this);\n  }\n};\n\n\n/**\n * Removes the instance from the global IntersectionObserver registry.\n * @private\n */\nIntersectionObserver.prototype._unregisterInstance = function() {\n  var index = registry.indexOf(this);\n  if (index != -1) registry.splice(index, 1);\n};\n\n\n/**\n * Returns the result of the performance.now() method or null in browsers\n * that don't support the API.\n * @return {number} The elapsed time since the page was requested.\n */\nfunction now() {\n  return window.performance && performance.now && performance.now();\n}\n\n\n/**\n * Throttles a function and delays its execution, so it's only called at most\n * once within a given time period.\n * @param {Function} fn The function to throttle.\n * @param {number} timeout The amount of time that must pass before the\n *     function can be called again.\n * @return {Function} The throttled function.\n */\nfunction throttle(fn, timeout) {\n  var timer = null;\n  return function () {\n    if (!timer) {\n      timer = setTimeout(function() {\n        fn();\n        timer = null;\n      }, timeout);\n    }\n  };\n}\n\n\n/**\n * Adds an event handler to a DOM node ensuring cross-browser compatibility.\n * @param {Node} node The DOM node to add the event handler to.\n * @param {string} event The event name.\n * @param {Function} fn The event handler to add.\n * @param {boolean} opt_useCapture Optionally adds the even to the capture\n *     phase. Note: this only works in modern browsers.\n */\nfunction addEvent(node, event, fn, opt_useCapture) {\n  if (typeof node.addEventListener == 'function') {\n    node.addEventListener(event, fn, opt_useCapture || false);\n  }\n  else if (typeof node.attachEvent == 'function') {\n    node.attachEvent('on' + event, fn);\n  }\n}\n\n\n/**\n * Removes a previously added event handler from a DOM node.\n * @param {Node} node The DOM node to remove the event handler from.\n * @param {string} event The event name.\n * @param {Function} fn The event handler to remove.\n * @param {boolean} opt_useCapture If the event handler was added with this\n *     flag set to true, it should be set to true here in order to remove it.\n */\nfunction removeEvent(node, event, fn, opt_useCapture) {\n  if (typeof node.removeEventListener == 'function') {\n    node.removeEventListener(event, fn, opt_useCapture || false);\n  }\n  else if (typeof node.detatchEvent == 'function') {\n    node.detatchEvent('on' + event, fn);\n  }\n}\n\n\n/**\n * Returns the intersection between two rect objects.\n * @param {Object} rect1 The first rect.\n * @param {Object} rect2 The second rect.\n * @return {?Object|?ClientRect} The intersection rect or undefined if no\n *     intersection is found.\n */\nfunction computeRectIntersection(rect1, rect2) {\n  var top = Math.max(rect1.top, rect2.top);\n  var bottom = Math.min(rect1.bottom, rect2.bottom);\n  var left = Math.max(rect1.left, rect2.left);\n  var right = Math.min(rect1.right, rect2.right);\n  var width = right - left;\n  var height = bottom - top;\n\n  return (width >= 0 && height >= 0) && {\n    top: top,\n    bottom: bottom,\n    left: left,\n    right: right,\n    width: width,\n    height: height\n  } || null;\n}\n\n\n/**\n * Shims the native getBoundingClientRect for compatibility with older IE.\n * @param {Element} el The element whose bounding rect to get.\n * @return {DOMRect|ClientRect} The (possibly shimmed) rect of the element.\n */\nfunction getBoundingClientRect(el) {\n  var rect;\n\n  try {\n    rect = el.getBoundingClientRect();\n  } catch (err) {\n    // Ignore Windows 7 IE11 \"Unspecified error\"\n    // https://github.com/w3c/IntersectionObserver/pull/205\n  }\n\n  if (!rect) return getEmptyRect();\n\n  // Older IE\n  if (!(rect.width && rect.height)) {\n    rect = {\n      top: rect.top,\n      right: rect.right,\n      bottom: rect.bottom,\n      left: rect.left,\n      width: rect.right - rect.left,\n      height: rect.bottom - rect.top\n    };\n  }\n  return rect;\n}\n\n\n/**\n * Returns an empty rect object. An empty rect is returned when an element\n * is not in the DOM.\n * @return {ClientRect} The empty rect.\n */\nfunction getEmptyRect() {\n  return {\n    top: 0,\n    bottom: 0,\n    left: 0,\n    right: 0,\n    width: 0,\n    height: 0\n  };\n}\n\n\n/**\n * Ensure that the result has all of the necessary fields of the DOMRect.\n * Specifically this ensures that `x` and `y` fields are set.\n *\n * @param {?DOMRect|?ClientRect} rect\n * @return {?DOMRect}\n */\nfunction ensureDOMRect(rect) {\n  // A `DOMRect` object has `x` and `y` fields.\n  if (!rect || 'x' in rect) {\n    return rect;\n  }\n  // A IE's `ClientRect` type does not have `x` and `y`. The same is the case\n  // for internally calculated Rect objects. For the purposes of\n  // `IntersectionObserver`, it's sufficient to simply mirror `left` and `top`\n  // for these fields.\n  return {\n    top: rect.top,\n    y: rect.top,\n    bottom: rect.bottom,\n    left: rect.left,\n    x: rect.left,\n    right: rect.right,\n    width: rect.width,\n    height: rect.height\n  };\n}\n\n\n/**\n * Inverts the intersection and bounding rect from the parent (frame) BCR to\n * the local BCR space.\n * @param {DOMRect|ClientRect} parentBoundingRect The parent's bound client rect.\n * @param {DOMRect|ClientRect} parentIntersectionRect The parent's own intersection rect.\n * @return {ClientRect} The local root bounding rect for the parent's children.\n */\nfunction convertFromParentRect(parentBoundingRect, parentIntersectionRect) {\n  var top = parentIntersectionRect.top - parentBoundingRect.top;\n  var left = parentIntersectionRect.left - parentBoundingRect.left;\n  return {\n    top: top,\n    left: left,\n    height: parentIntersectionRect.height,\n    width: parentIntersectionRect.width,\n    bottom: top + parentIntersectionRect.height,\n    right: left + parentIntersectionRect.width\n  };\n}\n\n\n/**\n * Checks to see if a parent element contains a child element (including inside\n * shadow DOM).\n * @param {Node} parent The parent element.\n * @param {Node} child The child element.\n * @return {boolean} True if the parent node contains the child node.\n */\nfunction containsDeep(parent, child) {\n  var node = child;\n  while (node) {\n    if (node == parent) return true;\n\n    node = getParentNode(node);\n  }\n  return false;\n}\n\n\n/**\n * Gets the parent node of an element or its host element if the parent node\n * is a shadow root.\n * @param {Node} node The node whose parent to get.\n * @return {Node|null} The parent node or null if no parent exists.\n */\nfunction getParentNode(node) {\n  var parent = node.parentNode;\n\n  if (node.nodeType == /* DOCUMENT */ 9 && node != document) {\n    // If this node is a document node, look for the embedding frame.\n    return getFrameElement(node);\n  }\n\n  // If the parent has element that is assigned through shadow root slot\n  if (parent && parent.assignedSlot) {\n    parent = parent.assignedSlot.parentNode\n  }\n\n  if (parent && parent.nodeType == 11 && parent.host) {\n    // If the parent is a shadow root, return the host element.\n    return parent.host;\n  }\n\n  return parent;\n}\n\n/**\n * Returns true if `node` is a Document.\n * @param {!Node} node\n * @returns {boolean}\n */\nfunction isDoc(node) {\n  return node && node.nodeType === 9;\n}\n\n\n// Exposes the constructors globally.\nwindow.IntersectionObserver = IntersectionObserver;\nwindow.IntersectionObserverEntry = IntersectionObserverEntry;\n\n}());\n","'use strict';\n\nvar hasToStringTag = typeof Symbol === 'function' && typeof Symbol.toStringTag === 'symbol';\nvar toStr = Object.prototype.toString;\n\nvar isStandardArguments = function isArguments(value) {\n\tif (hasToStringTag && value && typeof value === 'object' && Symbol.toStringTag in value) {\n\t\treturn false;\n\t}\n\treturn toStr.call(value) === '[object Arguments]';\n};\n\nvar isLegacyArguments = function isArguments(value) {\n\tif (isStandardArguments(value)) {\n\t\treturn true;\n\t}\n\treturn value !== null &&\n\t\ttypeof value === 'object' &&\n\t\ttypeof value.length === 'number' &&\n\t\tvalue.length >= 0 &&\n\t\ttoStr.call(value) !== '[object Array]' &&\n\t\ttoStr.call(value.callee) === '[object Function]';\n};\n\nvar supportsStandardArguments = (function () {\n\treturn isStandardArguments(arguments);\n}());\n\nisStandardArguments.isLegacyArguments = isLegacyArguments; // for tests\n\nmodule.exports = supportsStandardArguments ? isStandardArguments : isLegacyArguments;\n","/*!\n * Determine if an object is a Buffer\n *\n * @author   Feross Aboukhadijeh <https://feross.org>\n * @license  MIT\n */\n\n// The _isBuffer check is for Safari 5-7 support, because it's missing\n// Object.prototype.constructor. Remove this eventually\nmodule.exports = function (obj) {\n  return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer)\n}\n\nfunction isBuffer (obj) {\n  return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)\n}\n\n// For Node v0.10 support. Remove this eventually.\nfunction isSlowBuffer (obj) {\n  return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))\n}\n","'use strict';\n\nvar toStr = Object.prototype.toString;\nvar fnToStr = Function.prototype.toString;\nvar isFnRegex = /^\\s*(?:function)?\\*/;\nvar hasToStringTag = typeof Symbol === 'function' && typeof Symbol.toStringTag === 'symbol';\nvar getProto = Object.getPrototypeOf;\nvar getGeneratorFunc = function () { // eslint-disable-line consistent-return\n\tif (!hasToStringTag) {\n\t\treturn false;\n\t}\n\ttry {\n\t\treturn Function('return function*() {}')();\n\t} catch (e) {\n\t}\n};\nvar generatorFunc = getGeneratorFunc();\nvar GeneratorFunction = getProto && generatorFunc ? getProto(generatorFunc) : false;\n\nmodule.exports = function isGeneratorFunction(fn) {\n\tif (typeof fn !== 'function') {\n\t\treturn false;\n\t}\n\tif (isFnRegex.test(fnToStr.call(fn))) {\n\t\treturn true;\n\t}\n\tif (!hasToStringTag) {\n\t\tvar str = toStr.call(fn);\n\t\treturn str === '[object GeneratorFunction]';\n\t}\n\treturn getProto && getProto(fn) === GeneratorFunction;\n};\n","'use strict'\r\n\r\nmodule.exports = isMobile\r\nmodule.exports.isMobile = isMobile\r\nmodule.exports.default = isMobile\r\n\r\nvar mobileRE = /(android|bb\\d+|meego).+mobile|avantgo|bada\\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\\/|plucker|pocket|psp|series[46]0|symbian|treo|up\\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i\r\n\r\nvar tabletRE = /(android|bb\\d+|meego).+mobile|avantgo|bada\\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\\/|plucker|pocket|psp|series[46]0|symbian|treo|up\\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino|android|ipad|playbook|silk/i\r\n\r\nfunction isMobile (opts) {\r\n  if (!opts) opts = {}\r\n  var ua = opts.ua\r\n  if (!ua && typeof navigator !== 'undefined') ua = navigator.userAgent\r\n  if (ua && ua.headers && typeof ua.headers['user-agent'] === 'string') {\r\n    ua = ua.headers['user-agent']\r\n  }\r\n  if (typeof ua !== 'string') return false\r\n\r\n  var result = opts.tablet ? tabletRE.test(ua) : mobileRE.test(ua)\r\n\r\n  if (\r\n    !result &&\r\n    opts.tablet &&\r\n    opts.featureDetect &&\r\n    navigator &&\r\n    navigator.maxTouchPoints > 1 &&\r\n    ua.indexOf('Macintosh') !== -1 &&\r\n    ua.indexOf('Safari') !== -1\r\n  ) {\r\n    result = true\r\n  }\r\n\r\n  return result\r\n}\r\n","'use strict';\n\n/* http://www.ecma-international.org/ecma-262/6.0/#sec-number.isnan */\n\nmodule.exports = function isNaN(value) {\n\treturn value !== value;\n};\n","'use strict';\n\nvar define = require('define-properties');\n\nvar implementation = require('./implementation');\nvar getPolyfill = require('./polyfill');\nvar shim = require('./shim');\n\nvar polyfill = getPolyfill();\n\n/* http://www.ecma-international.org/ecma-262/6.0/#sec-number.isnan */\n\ndefine(polyfill, {\n\tgetPolyfill: getPolyfill,\n\timplementation: implementation,\n\tshim: shim\n});\n\nmodule.exports = polyfill;\n","'use strict';\n\nvar implementation = require('./implementation');\n\nmodule.exports = function getPolyfill() {\n\tif (Number.isNaN && Number.isNaN(NaN) && !Number.isNaN('a')) {\n\t\treturn Number.isNaN;\n\t}\n\treturn implementation;\n};\n","'use strict';\n\nvar define = require('define-properties');\nvar getPolyfill = require('./polyfill');\n\n/* http://www.ecma-international.org/ecma-262/6.0/#sec-number.isnan */\n\nmodule.exports = function shimNumberIsNaN() {\n\tvar polyfill = getPolyfill();\n\tdefine(Number, { isNaN: polyfill }, {\n\t\tisNaN: function testIsNaN() {\n\t\t\treturn Number.isNaN !== polyfill;\n\t\t}\n\t});\n\treturn polyfill;\n};\n","'use strict';\n\nvar WHITELIST = [\n\t'ETIMEDOUT',\n\t'ECONNRESET',\n\t'EADDRINUSE',\n\t'ESOCKETTIMEDOUT',\n\t'ECONNREFUSED',\n\t'EPIPE',\n\t'EHOSTUNREACH',\n\t'EAI_AGAIN'\n];\n\nvar BLACKLIST = [\n\t'ENOTFOUND',\n\t'ENETUNREACH',\n\n\t// SSL errors from https://github.com/nodejs/node/blob/ed3d8b13ee9a705d89f9e0397d9e96519e7e47ac/src/node_crypto.cc#L1950\n\t'UNABLE_TO_GET_ISSUER_CERT',\n\t'UNABLE_TO_GET_CRL',\n\t'UNABLE_TO_DECRYPT_CERT_SIGNATURE',\n\t'UNABLE_TO_DECRYPT_CRL_SIGNATURE',\n\t'UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY',\n\t'CERT_SIGNATURE_FAILURE',\n\t'CRL_SIGNATURE_FAILURE',\n\t'CERT_NOT_YET_VALID',\n\t'CERT_HAS_EXPIRED',\n\t'CRL_NOT_YET_VALID',\n\t'CRL_HAS_EXPIRED',\n\t'ERROR_IN_CERT_NOT_BEFORE_FIELD',\n\t'ERROR_IN_CERT_NOT_AFTER_FIELD',\n\t'ERROR_IN_CRL_LAST_UPDATE_FIELD',\n\t'ERROR_IN_CRL_NEXT_UPDATE_FIELD',\n\t'OUT_OF_MEM',\n\t'DEPTH_ZERO_SELF_SIGNED_CERT',\n\t'SELF_SIGNED_CERT_IN_CHAIN',\n\t'UNABLE_TO_GET_ISSUER_CERT_LOCALLY',\n\t'UNABLE_TO_VERIFY_LEAF_SIGNATURE',\n\t'CERT_CHAIN_TOO_LONG',\n\t'CERT_REVOKED',\n\t'INVALID_CA',\n\t'PATH_LENGTH_EXCEEDED',\n\t'INVALID_PURPOSE',\n\t'CERT_UNTRUSTED',\n\t'CERT_REJECTED'\n];\n\nmodule.exports = function (err) {\n\tif (!err || !err.code) {\n\t\treturn true;\n\t}\n\n\tif (WHITELIST.indexOf(err.code) !== -1) {\n\t\treturn true;\n\t}\n\n\tif (BLACKLIST.indexOf(err.code) !== -1) {\n\t\treturn false;\n\t}\n\n\treturn true;\n};\n","'use strict';\n\nvar forEach = require('foreach');\nvar availableTypedArrays = require('available-typed-arrays');\nvar callBound = require('call-bind/callBound');\n\nvar $toString = callBound('Object.prototype.toString');\nvar hasSymbols = require('has-symbols')();\nvar hasToStringTag = hasSymbols && typeof Symbol.toStringTag === 'symbol';\n\nvar typedArrays = availableTypedArrays();\n\nvar $indexOf = callBound('Array.prototype.indexOf', true) || function indexOf(array, value) {\n\tfor (var i = 0; i < array.length; i += 1) {\n\t\tif (array[i] === value) {\n\t\t\treturn i;\n\t\t}\n\t}\n\treturn -1;\n};\nvar $slice = callBound('String.prototype.slice');\nvar toStrTags = {};\nvar gOPD = require('es-abstract/helpers/getOwnPropertyDescriptor');\nvar getPrototypeOf = Object.getPrototypeOf; // require('getprototypeof');\nif (hasToStringTag && gOPD && getPrototypeOf) {\n\tforEach(typedArrays, function (typedArray) {\n\t\tvar arr = new global[typedArray]();\n\t\tif (!(Symbol.toStringTag in arr)) {\n\t\t\tthrow new EvalError('this engine has support for Symbol.toStringTag, but ' + typedArray + ' does not have the property! Please report this.');\n\t\t}\n\t\tvar proto = getPrototypeOf(arr);\n\t\tvar descriptor = gOPD(proto, Symbol.toStringTag);\n\t\tif (!descriptor) {\n\t\t\tvar superProto = getPrototypeOf(proto);\n\t\t\tdescriptor = gOPD(superProto, Symbol.toStringTag);\n\t\t}\n\t\ttoStrTags[typedArray] = descriptor.get;\n\t});\n}\n\nvar tryTypedArrays = function tryAllTypedArrays(value) {\n\tvar anyTrue = false;\n\tforEach(toStrTags, function (getter, typedArray) {\n\t\tif (!anyTrue) {\n\t\t\ttry {\n\t\t\t\tanyTrue = getter.call(value) === typedArray;\n\t\t\t} catch (e) { /**/ }\n\t\t}\n\t});\n\treturn anyTrue;\n};\n\nmodule.exports = function isTypedArray(value) {\n\tif (!value || typeof value !== 'object') { return false; }\n\tif (!hasToStringTag) {\n\t\tvar tag = $slice($toString(value), 8, -1);\n\t\treturn $indexOf(typedArrays, tag) > -1;\n\t}\n\tif (!gOPD) { return false; }\n\treturn tryTypedArrays(value);\n};\n","'use strict';\n\nvar GetIntrinsic = require('get-intrinsic');\n\nvar $gOPD = GetIntrinsic('%Object.getOwnPropertyDescriptor%');\nif ($gOPD) {\n\ttry {\n\t\t$gOPD([], 'length');\n\t} catch (e) {\n\t\t// IE 8 has a broken gOPD\n\t\t$gOPD = null;\n\t}\n}\n\nmodule.exports = $gOPD;\n","/*!\n * JavaScript Cookie v2.2.1\n * https://github.com/js-cookie/js-cookie\n *\n * Copyright 2006, 2015 Klaus Hartl & Fagner Brack\n * Released under the MIT license\n */\n;(function (factory) {\n\tvar registeredInModuleLoader;\n\tif (typeof define === 'function' && define.amd) {\n\t\tdefine(factory);\n\t\tregisteredInModuleLoader = true;\n\t}\n\tif (typeof exports === 'object') {\n\t\tmodule.exports = factory();\n\t\tregisteredInModuleLoader = true;\n\t}\n\tif (!registeredInModuleLoader) {\n\t\tvar OldCookies = window.Cookies;\n\t\tvar api = window.Cookies = factory();\n\t\tapi.noConflict = function () {\n\t\t\twindow.Cookies = OldCookies;\n\t\t\treturn api;\n\t\t};\n\t}\n}(function () {\n\tfunction extend () {\n\t\tvar i = 0;\n\t\tvar result = {};\n\t\tfor (; i < arguments.length; i++) {\n\t\t\tvar attributes = arguments[ i ];\n\t\t\tfor (var key in attributes) {\n\t\t\t\tresult[key] = attributes[key];\n\t\t\t}\n\t\t}\n\t\treturn result;\n\t}\n\n\tfunction decode (s) {\n\t\treturn s.replace(/(%[0-9A-Z]{2})+/g, decodeURIComponent);\n\t}\n\n\tfunction init (converter) {\n\t\tfunction api() {}\n\n\t\tfunction set (key, value, attributes) {\n\t\t\tif (typeof document === 'undefined') {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tattributes = extend({\n\t\t\t\tpath: '/'\n\t\t\t}, api.defaults, attributes);\n\n\t\t\tif (typeof attributes.expires === 'number') {\n\t\t\t\tattributes.expires = new Date(new Date() * 1 + attributes.expires * 864e+5);\n\t\t\t}\n\n\t\t\t// We're using \"expires\" because \"max-age\" is not supported by IE\n\t\t\tattributes.expires = attributes.expires ? attributes.expires.toUTCString() : '';\n\n\t\t\ttry {\n\t\t\t\tvar result = JSON.stringify(value);\n\t\t\t\tif (/^[\\{\\[]/.test(result)) {\n\t\t\t\t\tvalue = result;\n\t\t\t\t}\n\t\t\t} catch (e) {}\n\n\t\t\tvalue = converter.write ?\n\t\t\t\tconverter.write(value, key) :\n\t\t\t\tencodeURIComponent(String(value))\n\t\t\t\t\t.replace(/%(23|24|26|2B|3A|3C|3E|3D|2F|3F|40|5B|5D|5E|60|7B|7D|7C)/g, decodeURIComponent);\n\n\t\t\tkey = encodeURIComponent(String(key))\n\t\t\t\t.replace(/%(23|24|26|2B|5E|60|7C)/g, decodeURIComponent)\n\t\t\t\t.replace(/[\\(\\)]/g, escape);\n\n\t\t\tvar stringifiedAttributes = '';\n\t\t\tfor (var attributeName in attributes) {\n\t\t\t\tif (!attributes[attributeName]) {\n\t\t\t\t\tcontinue;\n\t\t\t\t}\n\t\t\t\tstringifiedAttributes += '; ' + attributeName;\n\t\t\t\tif (attributes[attributeName] === true) {\n\t\t\t\t\tcontinue;\n\t\t\t\t}\n\n\t\t\t\t// Considers RFC 6265 section 5.2:\n\t\t\t\t// ...\n\t\t\t\t// 3.  If the remaining unparsed-attributes contains a %x3B (\";\")\n\t\t\t\t//     character:\n\t\t\t\t// Consume the characters of the unparsed-attributes up to,\n\t\t\t\t// not including, the first %x3B (\";\") character.\n\t\t\t\t// ...\n\t\t\t\tstringifiedAttributes += '=' + attributes[attributeName].split(';')[0];\n\t\t\t}\n\n\t\t\treturn (document.cookie = key + '=' + value + stringifiedAttributes);\n\t\t}\n\n\t\tfunction get (key, json) {\n\t\t\tif (typeof document === 'undefined') {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tvar jar = {};\n\t\t\t// To prevent the for loop in the first place assign an empty array\n\t\t\t// in case there are no cookies at all.\n\t\t\tvar cookies = document.cookie ? document.cookie.split('; ') : [];\n\t\t\tvar i = 0;\n\n\t\t\tfor (; i < cookies.length; i++) {\n\t\t\t\tvar parts = cookies[i].split('=');\n\t\t\t\tvar cookie = parts.slice(1).join('=');\n\n\t\t\t\tif (!json && cookie.charAt(0) === '\"') {\n\t\t\t\t\tcookie = cookie.slice(1, -1);\n\t\t\t\t}\n\n\t\t\t\ttry {\n\t\t\t\t\tvar name = decode(parts[0]);\n\t\t\t\t\tcookie = (converter.read || converter)(cookie, name) ||\n\t\t\t\t\t\tdecode(cookie);\n\n\t\t\t\t\tif (json) {\n\t\t\t\t\t\ttry {\n\t\t\t\t\t\t\tcookie = JSON.parse(cookie);\n\t\t\t\t\t\t} catch (e) {}\n\t\t\t\t\t}\n\n\t\t\t\t\tjar[name] = cookie;\n\n\t\t\t\t\tif (key === name) {\n\t\t\t\t\t\tbreak;\n\t\t\t\t\t}\n\t\t\t\t} catch (e) {}\n\t\t\t}\n\n\t\t\treturn key ? 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