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(e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n * @example\n *\n * _.isObject({});\n * // => true\n *\n * _.isObject([1, 2, 3]);\n * // => true\n *\n * _.isObject(_.noop);\n * // => true\n *\n * _.isObject(null);\n * // => false\n */\nfunction isObject(value) {\n var type = typeof value;\n return value != null && (type == 'object' || type == 'function');\n}\n\nmodule.exports = isObject;\n", "/** Detect free variable `global` from Node.js. */\nvar freeGlobal = typeof global == 'object' && global && global.Object === Object && global;\n\nmodule.exports = freeGlobal;\n", "var freeGlobal = require('./_freeGlobal');\n\n/** Detect free variable `self`. */\nvar freeSelf = typeof self == 'object' && self && self.Object === Object && self;\n\n/** Used as a reference to the global object. */\nvar root = freeGlobal || freeSelf || Function('return this')();\n\nmodule.exports = root;\n", "var root = require('./_root');\n\n/**\n * Gets the timestamp of the number of milliseconds that have elapsed since\n * the Unix epoch (1 January 1970 00:00:00 UTC).\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Date\n * @returns {number} Returns the timestamp.\n * @example\n *\n * _.defer(function(stamp) {\n * console.log(_.now() - stamp);\n * }, _.now());\n * // => Logs the number of milliseconds it took for the deferred invocation.\n */\nvar now = function() {\n return root.Date.now();\n};\n\nmodule.exports = now;\n", "/** Used to match a single whitespace character. */\nvar reWhitespace = /\\s/;\n\n/**\n * Used by `_.trim` and `_.trimEnd` to get the index of the last non-whitespace\n * character of `string`.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {number} Returns the index of the last non-whitespace character.\n */\nfunction trimmedEndIndex(string) {\n var index = string.length;\n\n while (index-- && reWhitespace.test(string.charAt(index))) {}\n return index;\n}\n\nmodule.exports = trimmedEndIndex;\n", "var trimmedEndIndex = require('./_trimmedEndIndex');\n\n/** Used to match leading whitespace. */\nvar reTrimStart = /^\\s+/;\n\n/**\n * The base implementation of `_.trim`.\n *\n * @private\n * @param {string} string The string to trim.\n * @returns {string} Returns the trimmed string.\n */\nfunction baseTrim(string) {\n return string\n ? string.slice(0, trimmedEndIndex(string) + 1).replace(reTrimStart, '')\n : string;\n}\n\nmodule.exports = baseTrim;\n", "var root = require('./_root');\n\n/** Built-in value references. */\nvar Symbol = root.Symbol;\n\nmodule.exports = Symbol;\n", "var Symbol = require('./_Symbol');\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Used to resolve the\n * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar nativeObjectToString = objectProto.toString;\n\n/** Built-in value references. */\nvar symToStringTag = Symbol ? Symbol.toStringTag : undefined;\n\n/**\n * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the raw `toStringTag`.\n */\nfunction getRawTag(value) {\n var isOwn = hasOwnProperty.call(value, symToStringTag),\n tag = value[symToStringTag];\n\n try {\n value[symToStringTag] = undefined;\n var unmasked = true;\n } catch (e) {}\n\n var result = nativeObjectToString.call(value);\n if (unmasked) {\n if (isOwn) {\n value[symToStringTag] = tag;\n } else {\n delete value[symToStringTag];\n }\n }\n return result;\n}\n\nmodule.exports = getRawTag;\n", "/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/**\n * Used to resolve the\n * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar nativeObjectToString = objectProto.toString;\n\n/**\n * Converts `value` to a string using `Object.prototype.toString`.\n *\n * @private\n * @param {*} value The value to convert.\n * @returns {string} Returns the converted string.\n */\nfunction objectToString(value) {\n return nativeObjectToString.call(value);\n}\n\nmodule.exports = objectToString;\n", "var Symbol = require('./_Symbol'),\n getRawTag = require('./_getRawTag'),\n objectToString = require('./_objectToString');\n\n/** `Object#toString` result references. */\nvar nullTag = '[object Null]',\n undefinedTag = '[object Undefined]';\n\n/** Built-in value references. */\nvar symToStringTag = Symbol ? Symbol.toStringTag : undefined;\n\n/**\n * The base implementation of `getTag` without fallbacks for buggy environments.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\nfunction baseGetTag(value) {\n if (value == null) {\n return value === undefined ? undefinedTag : nullTag;\n }\n return (symToStringTag && symToStringTag in Object(value))\n ? getRawTag(value)\n : objectToString(value);\n}\n\nmodule.exports = baseGetTag;\n", "/**\n * Checks if `value` is object-like. A value is object-like if it's not `null`\n * and has a `typeof` result of \"object\".\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n * @example\n *\n * _.isObjectLike({});\n * // => true\n *\n * _.isObjectLike([1, 2, 3]);\n * // => true\n *\n * _.isObjectLike(_.noop);\n * // => false\n *\n * _.isObjectLike(null);\n * // => false\n */\nfunction isObjectLike(value) {\n return value != null && typeof value == 'object';\n}\n\nmodule.exports = isObjectLike;\n", "var baseGetTag = require('./_baseGetTag'),\n isObjectLike = require('./isObjectLike');\n\n/** `Object#toString` result references. */\nvar symbolTag = '[object Symbol]';\n\n/**\n * Checks if `value` is classified as a `Symbol` primitive or object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.\n * @example\n *\n * _.isSymbol(Symbol.iterator);\n * // => true\n *\n * _.isSymbol('abc');\n * // => false\n */\nfunction isSymbol(value) {\n return typeof value == 'symbol' ||\n (isObjectLike(value) && baseGetTag(value) == symbolTag);\n}\n\nmodule.exports = isSymbol;\n", "var baseTrim = require('./_baseTrim'),\n isObject = require('./isObject'),\n isSymbol = require('./isSymbol');\n\n/** Used as references for various `Number` constants. */\nvar NAN = 0 / 0;\n\n/** Used to detect bad signed hexadecimal string values. */\nvar reIsBadHex = /^[-+]0x[0-9a-f]+$/i;\n\n/** Used to detect binary string values. */\nvar reIsBinary = /^0b[01]+$/i;\n\n/** Used to detect octal string values. */\nvar reIsOctal = /^0o[0-7]+$/i;\n\n/** Built-in method references without a dependency on `root`. */\nvar freeParseInt = parseInt;\n\n/**\n * Converts `value` to a number.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to process.\n * @returns {number} Returns the number.\n * @example\n *\n * _.toNumber(3.2);\n * // => 3.2\n *\n * _.toNumber(Number.MIN_VALUE);\n * // => 5e-324\n *\n * _.toNumber(Infinity);\n * // => Infinity\n *\n * _.toNumber('3.2');\n * // => 3.2\n */\nfunction toNumber(value) {\n if (typeof value == 'number') {\n return value;\n }\n if (isSymbol(value)) {\n return NAN;\n }\n if (isObject(value)) {\n var other = typeof value.valueOf == 'function' ? value.valueOf() : value;\n value = isObject(other) ? (other + '') : other;\n }\n if (typeof value != 'string') {\n return value === 0 ? value : +value;\n }\n value = baseTrim(value);\n var isBinary = reIsBinary.test(value);\n return (isBinary || reIsOctal.test(value))\n ? freeParseInt(value.slice(2), isBinary ? 2 : 8)\n : (reIsBadHex.test(value) ? NAN : +value);\n}\n\nmodule.exports = toNumber;\n", "var isObject = require('./isObject'),\n now = require('./now'),\n toNumber = require('./toNumber');\n\n/** Error message constants. */\nvar FUNC_ERROR_TEXT = 'Expected a function';\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeMax = Math.max,\n nativeMin = Math.min;\n\n/**\n * Creates a debounced function that delays invoking `func` until after `wait`\n * milliseconds have elapsed since the last time the debounced function was\n * invoked. The debounced function comes with a `cancel` method to cancel\n * delayed `func` invocations and a `flush` method to immediately invoke them.\n * Provide `options` to indicate whether `func` should be invoked on the\n * leading and/or trailing edge of the `wait` timeout. The `func` is invoked\n * with the last arguments provided to the debounced function. Subsequent\n * calls to the debounced function return the result of the last `func`\n * invocation.\n *\n * **Note:** If `leading` and `trailing` options are `true`, `func` is\n * invoked on the trailing edge of the timeout only if the debounced function\n * is invoked more than once during the `wait` timeout.\n *\n * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n *\n * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n * for details over the differences between `_.debounce` and `_.throttle`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to debounce.\n * @param {number} [wait=0] The number of milliseconds to delay.\n * @param {Object} [options={}] The options object.\n * @param {boolean} [options.leading=false]\n * Specify invoking on the leading edge of the timeout.\n * @param {number} [options.maxWait]\n * The maximum time `func` is allowed to be delayed before it's invoked.\n * @param {boolean} [options.trailing=true]\n * Specify invoking on the trailing edge of the timeout.\n * @returns {Function} Returns the new debounced function.\n * @example\n *\n * // Avoid costly calculations while the window size is in flux.\n * jQuery(window).on('resize', _.debounce(calculateLayout, 150));\n *\n * // Invoke `sendMail` when clicked, debouncing subsequent calls.\n * jQuery(element).on('click', _.debounce(sendMail, 300, {\n * 'leading': true,\n * 'trailing': false\n * }));\n *\n * // Ensure `batchLog` is invoked once after 1 second of debounced calls.\n * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });\n * var source = new EventSource('/stream');\n * jQuery(source).on('message', debounced);\n *\n * // Cancel the trailing debounced invocation.\n * jQuery(window).on('popstate', debounced.cancel);\n */\nfunction debounce(func, wait, options) {\n var lastArgs,\n lastThis,\n maxWait,\n result,\n timerId,\n lastCallTime,\n lastInvokeTime = 0,\n leading = false,\n maxing = false,\n trailing = true;\n\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n wait = toNumber(wait) || 0;\n if (isObject(options)) {\n leading = !!options.leading;\n maxing = 'maxWait' in options;\n maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;\n trailing = 'trailing' in options ? !!options.trailing : trailing;\n }\n\n function invokeFunc(time) {\n var args = lastArgs,\n thisArg = lastThis;\n\n lastArgs = lastThis = undefined;\n lastInvokeTime = time;\n result = func.apply(thisArg, args);\n return result;\n }\n\n function leadingEdge(time) {\n // Reset any `maxWait` timer.\n lastInvokeTime = time;\n // Start the timer for the trailing edge.\n timerId = setTimeout(timerExpired, wait);\n // Invoke the leading edge.\n return leading ? invokeFunc(time) : result;\n }\n\n function remainingWait(time) {\n var timeSinceLastCall = time - lastCallTime,\n timeSinceLastInvoke = time - lastInvokeTime,\n timeWaiting = wait - timeSinceLastCall;\n\n return maxing\n ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke)\n : timeWaiting;\n }\n\n function shouldInvoke(time) {\n var timeSinceLastCall = time - lastCallTime,\n timeSinceLastInvoke = time - lastInvokeTime;\n\n // Either this is the first call, activity has stopped and we're at the\n // trailing edge, the system time has gone backwards and we're treating\n // it as the trailing edge, or we've hit the `maxWait` limit.\n return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||\n (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));\n }\n\n function timerExpired() {\n var time = now();\n if (shouldInvoke(time)) {\n return trailingEdge(time);\n }\n // Restart the timer.\n timerId = setTimeout(timerExpired, remainingWait(time));\n }\n\n function trailingEdge(time) {\n timerId = undefined;\n\n // Only invoke if we have `lastArgs` which means `func` has been\n // debounced at least once.\n if (trailing && lastArgs) {\n return invokeFunc(time);\n }\n lastArgs = lastThis = undefined;\n return result;\n }\n\n function cancel() {\n if (timerId !== undefined) {\n clearTimeout(timerId);\n }\n lastInvokeTime = 0;\n lastArgs = lastCallTime = lastThis = timerId = undefined;\n }\n\n function flush() {\n return timerId === undefined ? result : trailingEdge(now());\n }\n\n function debounced() {\n var time = now(),\n isInvoking = shouldInvoke(time);\n\n lastArgs = arguments;\n lastThis = this;\n lastCallTime = time;\n\n if (isInvoking) {\n if (timerId === undefined) {\n return leadingEdge(lastCallTime);\n }\n if (maxing) {\n // Handle invocations in a tight loop.\n clearTimeout(timerId);\n timerId = setTimeout(timerExpired, wait);\n return invokeFunc(lastCallTime);\n }\n }\n if (timerId === undefined) {\n timerId = setTimeout(timerExpired, wait);\n }\n return result;\n }\n debounced.cancel = cancel;\n debounced.flush = flush;\n return debounced;\n}\n\nmodule.exports = debounce;\n", "/*\n * File: iframeResizer.js\n * Desc: Force iframes to size to content.\n * Requires: iframeResizer.contentWindow.js to be loaded into the target frame.\n * Doc: https://github.com/davidjbradshaw/iframe-resizer\n * Author: David J. Bradshaw - dave@bradshaw.net\n * Contributor: Jure Mav - jure.mav@gmail.com\n * Contributor: Reed Dadoune - reed@dadoune.com\n */\n\n// eslint-disable-next-line sonarjs/cognitive-complexity, no-shadow-restricted-names\n;(function (undefined) {\n if (typeof window === 'undefined') return // don't run for server side render\n\n // var VERSION = '4.3.11'\n\n var count = 0,\n destroyObserver,\n logEnabled = false,\n hiddenCheckEnabled = false,\n msgHeader = 'message',\n msgHeaderLen = msgHeader.length,\n msgId = '[iFrameSizer]', // Must match iframe msg ID\n msgIdLen = msgId.length,\n pagePosition = null,\n requestAnimationFrame = window.requestAnimationFrame,\n resetRequiredMethods = Object.freeze({\n max: 1,\n scroll: 1,\n bodyScroll: 1,\n documentElementScroll: 1\n }),\n settings = {},\n timer = null,\n defaults = Object.freeze({\n autoResize: true,\n bodyBackground: null,\n bodyMargin: null,\n bodyMarginV1: 8,\n bodyPadding: null,\n checkOrigin: true,\n inPageLinks: false,\n enablePublicMethods: true,\n heightCalculationMethod: 'bodyOffset',\n id: 'iFrameResizer',\n interval: 32,\n license: '1jqr0si6pnt',\n log: false,\n maxHeight: Infinity,\n maxWidth: Infinity,\n minHeight: 0,\n minWidth: 0,\n mouseEvents: true,\n resizeFrom: 'parent',\n scrolling: false,\n sizeHeight: true,\n sizeWidth: false,\n warningTimeout: 5000,\n tolerance: 0,\n widthCalculationMethod: 'scroll',\n onClose: function () {\n return true\n },\n onClosed: function () {},\n onInit: function () {},\n onMessage: function () {\n warn('onMessage function not defined')\n },\n onMouseEnter: function () {},\n onMouseLeave: function () {},\n onResized: function () {},\n onScroll: function () {\n return true\n }\n })\n\n function getMutationObserver() {\n return (\n window.MutationObserver ||\n window.WebKitMutationObserver ||\n window.MozMutationObserver\n )\n }\n\n function addEventListener(el, evt, func) {\n el.addEventListener(evt, func, false)\n }\n\n function removeEventListener(el, evt, func) {\n el.removeEventListener(evt, func, false)\n }\n\n function setupRequestAnimationFrame() {\n var vendors = ['moz', 'webkit', 'o', 'ms']\n var x\n\n // Remove vendor prefixing if prefixed and break early if not\n for (x = 0; x < vendors.length && !requestAnimationFrame; x += 1) {\n requestAnimationFrame = window[vendors[x] + 'RequestAnimationFrame']\n }\n\n if (requestAnimationFrame) {\n // Firefox extension content-scripts have a globalThis object that is not the same as window.\n // Binding `requestAnimationFrame` to window allows the function to work and prevents errors\n // being thrown when run in that context, and should be a no-op in every other context.\n requestAnimationFrame = requestAnimationFrame.bind(window)\n } else {\n log('setup', 'RequestAnimationFrame not supported')\n }\n }\n\n function getMyID(iframeId) {\n var retStr = 'Host page: ' + iframeId\n\n if (window.top !== window.self) {\n retStr =\n window.parentIFrame && window.parentIFrame.getId\n ? window.parentIFrame.getId() + ': ' + iframeId\n : 'Nested host page: ' + iframeId\n }\n\n return retStr\n }\n\n function formatLogHeader(iframeId) {\n return msgId + '[' + getMyID(iframeId) + ']'\n }\n\n function isLogEnabled(iframeId) {\n return settings[iframeId] ? settings[iframeId].log : logEnabled\n }\n\n function log(iframeId, msg) {\n output('log', iframeId, msg, isLogEnabled(iframeId))\n }\n\n function info(iframeId, msg) {\n output('info', iframeId, msg, isLogEnabled(iframeId))\n }\n\n function warn(iframeId, msg) {\n output('warn', iframeId, msg, true)\n }\n\n function output(type, iframeId, msg, enabled) {\n if (true === enabled && 'object' === typeof window.console) {\n // eslint-disable-next-line no-console\n console[type](formatLogHeader(iframeId), msg)\n }\n }\n\n function iFrameListener(event) {\n function resizeIFrame() {\n function resize() {\n setSize(messageData)\n setPagePosition(iframeId)\n on('onResized', messageData)\n }\n\n ensureInRange('Height')\n ensureInRange('Width')\n\n syncResize(resize, messageData, 'init')\n }\n\n function processMsg() {\n var data = msg.slice(msgIdLen).split(':')\n var height = data[1] ? parseInt(data[1], 10) : 0\n var iframe = settings[data[0]] && settings[data[0]].iframe\n var compStyle = getComputedStyle(iframe)\n\n return {\n iframe: iframe,\n id: data[0],\n height: height + getPaddingEnds(compStyle) + getBorderEnds(compStyle),\n width: data[2],\n type: data[3]\n }\n }\n\n function getPaddingEnds(compStyle) {\n if (compStyle.boxSizing !== 'border-box') {\n return 0\n }\n var top = compStyle.paddingTop ? parseInt(compStyle.paddingTop, 10) : 0\n var bot = compStyle.paddingBottom\n ? parseInt(compStyle.paddingBottom, 10)\n : 0\n return top + bot\n }\n\n function getBorderEnds(compStyle) {\n if (compStyle.boxSizing !== 'border-box') {\n return 0\n }\n var top = compStyle.borderTopWidth\n ? parseInt(compStyle.borderTopWidth, 10)\n : 0\n var bot = compStyle.borderBottomWidth\n ? parseInt(compStyle.borderBottomWidth, 10)\n : 0\n return top + bot\n }\n\n function ensureInRange(Dimension) {\n var max = Number(settings[iframeId]['max' + Dimension]),\n min = Number(settings[iframeId]['min' + Dimension]),\n dimension = Dimension.toLowerCase(),\n size = Number(messageData[dimension])\n\n log(iframeId, 'Checking ' + dimension + ' is in range ' + min + '-' + max)\n\n if (size < min) {\n size = min\n log(iframeId, 'Set ' + dimension + ' to min value')\n }\n\n if (size > max) {\n size = max\n log(iframeId, 'Set ' + dimension + ' to max value')\n }\n\n messageData[dimension] = '' + size\n }\n\n function isMessageFromIFrame() {\n function checkAllowedOrigin() {\n function checkList() {\n var i = 0,\n retCode = false\n\n log(\n iframeId,\n 'Checking connection is from allowed list of origins: ' +\n checkOrigin\n )\n\n for (; i < checkOrigin.length; i++) {\n if (checkOrigin[i] === origin) {\n retCode = true\n break\n }\n }\n return retCode\n }\n\n function checkSingle() {\n var remoteHost = settings[iframeId] && settings[iframeId].remoteHost\n log(iframeId, 'Checking connection is from: ' + remoteHost)\n return origin === remoteHost\n }\n\n return checkOrigin.constructor === Array ? checkList() : checkSingle()\n }\n\n var origin = event.origin,\n checkOrigin = settings[iframeId] && settings[iframeId].checkOrigin\n\n if (checkOrigin && '' + origin !== 'null' && !checkAllowedOrigin()) {\n throw new Error(\n 'Unexpected message received from: ' +\n origin +\n ' for ' +\n messageData.iframe.id +\n '. Message was: ' +\n event.data +\n '. This error can be disabled by setting the checkOrigin: false option or by providing of array of trusted domains.'\n )\n }\n\n return true\n }\n\n function isMessageForUs() {\n return (\n msgId === ('' + msg).slice(0, msgIdLen) &&\n msg.slice(msgIdLen).split(':')[0] in settings\n ) // ''+Protects against non-string msg\n }\n\n function isMessageFromMetaParent() {\n // Test if this message is from a parent above us. This is an ugly test, however, updating\n // the message format would break backwards compatibility.\n var retCode = messageData.type in { true: 1, false: 1, undefined: 1 }\n\n if (retCode) {\n log(iframeId, 'Ignoring init message from meta parent page')\n }\n\n return retCode\n }\n\n function getMsgBody(offset) {\n return msg.slice(msg.indexOf(':') + msgHeaderLen + offset)\n }\n\n function forwardMsgFromIFrame(msgBody) {\n log(\n iframeId,\n 'onMessage passed: {iframe: ' +\n messageData.iframe.id +\n ', message: ' +\n msgBody +\n '}'\n )\n\n on('onMessage', {\n iframe: messageData.iframe,\n message: JSON.parse(msgBody)\n })\n\n log(iframeId, '--')\n }\n\n function getPageInfo() {\n var bodyPosition = document.body.getBoundingClientRect(),\n iFramePosition = messageData.iframe.getBoundingClientRect()\n\n return JSON.stringify({\n iframeHeight: iFramePosition.height,\n iframeWidth: iFramePosition.width,\n clientHeight: Math.max(\n document.documentElement.clientHeight,\n window.innerHeight || 0\n ),\n clientWidth: Math.max(\n document.documentElement.clientWidth,\n window.innerWidth || 0\n ),\n offsetTop: parseInt(iFramePosition.top - bodyPosition.top, 10),\n offsetLeft: parseInt(iFramePosition.left - bodyPosition.left, 10),\n scrollTop: window.pageYOffset,\n scrollLeft: window.pageXOffset,\n documentHeight: document.documentElement.clientHeight,\n documentWidth: document.documentElement.clientWidth,\n windowHeight: window.innerHeight,\n windowWidth: window.innerWidth\n })\n }\n\n function sendPageInfoToIframe(iframe, iframeId) {\n function debouncedTrigger() {\n trigger('Send Page Info', 'pageInfo:' + getPageInfo(), iframe, iframeId)\n }\n debounceFrameEvents(debouncedTrigger, 32, iframeId)\n }\n\n function startPageInfoMonitor() {\n function setListener(type, func) {\n function sendPageInfo() {\n if (settings[id]) {\n sendPageInfoToIframe(settings[id].iframe, id)\n } else {\n stop()\n }\n }\n\n ;['scroll', 'resize'].forEach(function (evt) {\n log(id, type + evt + ' listener for sendPageInfo')\n func(window, evt, sendPageInfo)\n })\n }\n\n function stop() {\n setListener('Remove ', removeEventListener)\n }\n\n function start() {\n setListener('Add ', addEventListener)\n }\n\n var id = iframeId // Create locally scoped copy of iFrame ID\n\n start()\n\n if (settings[id]) {\n settings[id].stopPageInfo = stop\n }\n }\n\n function stopPageInfoMonitor() {\n if (settings[iframeId] && settings[iframeId].stopPageInfo) {\n settings[iframeId].stopPageInfo()\n delete settings[iframeId].stopPageInfo\n }\n }\n\n function checkIFrameExists() {\n var retBool = true\n\n if (null === messageData.iframe) {\n warn(iframeId, 'IFrame (' + messageData.id + ') not found')\n retBool = false\n }\n return retBool\n }\n\n function getElementPosition(target) {\n var iFramePosition = target.getBoundingClientRect()\n\n getPagePosition(iframeId)\n\n return {\n x: Math.floor(Number(iFramePosition.left) + Number(pagePosition.x)),\n y: Math.floor(Number(iFramePosition.top) + Number(pagePosition.y))\n }\n }\n\n function scrollRequestFromChild(addOffset) {\n /* istanbul ignore next */ // Not testable in Karma\n function reposition() {\n pagePosition = newPosition\n scrollTo()\n log(iframeId, '--')\n }\n\n function calcOffset() {\n return {\n x: Number(messageData.width) + offset.x,\n y: Number(messageData.height) + offset.y\n }\n }\n\n function scrollParent() {\n if (window.parentIFrame) {\n window.parentIFrame['scrollTo' + (addOffset ? 'Offset' : '')](\n newPosition.x,\n newPosition.y\n )\n } else {\n warn(\n iframeId,\n 'Unable to scroll to requested position, window.parentIFrame not found'\n )\n }\n }\n\n var offset = addOffset\n ? getElementPosition(messageData.iframe)\n : { x: 0, y: 0 },\n newPosition = calcOffset()\n\n log(\n iframeId,\n 'Reposition requested from iFrame (offset x:' +\n offset.x +\n ' y:' +\n offset.y +\n ')'\n )\n\n if (window.top === window.self) {\n reposition()\n } else {\n scrollParent()\n }\n }\n\n function scrollTo() {\n if (false === on('onScroll', pagePosition)) {\n unsetPagePosition()\n } else {\n setPagePosition(iframeId)\n }\n }\n\n function findTarget(location) {\n function jumpToTarget() {\n var jumpPosition = getElementPosition(target)\n\n log(\n iframeId,\n 'Moving to in page link (#' +\n hash +\n ') at x: ' +\n jumpPosition.x +\n ' y: ' +\n jumpPosition.y\n )\n pagePosition = {\n x: jumpPosition.x,\n y: jumpPosition.y\n }\n\n scrollTo()\n log(iframeId, '--')\n }\n\n function jumpToParent() {\n if (window.parentIFrame) {\n window.parentIFrame.moveToAnchor(hash)\n } else {\n log(\n iframeId,\n 'In page link #' +\n hash +\n ' not found and window.parentIFrame not found'\n )\n }\n }\n\n var hash = location.split('#')[1] || '',\n hashData = decodeURIComponent(hash),\n target =\n document.getElementById(hashData) ||\n document.getElementsByName(hashData)[0]\n\n if (target) {\n jumpToTarget()\n } else if (window.top === window.self) {\n log(iframeId, 'In page link #' + hash + ' not found')\n } else {\n jumpToParent()\n }\n }\n\n function onMouse(event) {\n var mousePos = {}\n\n if (Number(messageData.width) === 0 && Number(messageData.height) === 0) {\n var data = getMsgBody(9).split(':')\n mousePos = {\n x: data[1],\n y: data[0]\n }\n } else {\n mousePos = {\n x: messageData.width,\n y: messageData.height\n }\n }\n\n on(event, {\n iframe: messageData.iframe,\n screenX: Number(mousePos.x),\n screenY: Number(mousePos.y),\n type: messageData.type\n })\n }\n\n function on(funcName, val) {\n return chkEvent(iframeId, funcName, val)\n }\n\n function actionMsg() {\n if (settings[iframeId] && settings[iframeId].firstRun) firstRun()\n\n switch (messageData.type) {\n case 'close': {\n closeIFrame(messageData.iframe)\n break\n }\n\n case 'message': {\n forwardMsgFromIFrame(getMsgBody(6))\n break\n }\n\n case 'mouseenter': {\n onMouse('onMouseEnter')\n break\n }\n\n case 'mouseleave': {\n onMouse('onMouseLeave')\n break\n }\n\n case 'autoResize': {\n settings[iframeId].autoResize = JSON.parse(getMsgBody(9))\n break\n }\n\n case 'scrollTo': {\n scrollRequestFromChild(false)\n break\n }\n\n case 'scrollToOffset': {\n scrollRequestFromChild(true)\n break\n }\n\n case 'pageInfo': {\n sendPageInfoToIframe(\n settings[iframeId] && settings[iframeId].iframe,\n iframeId\n )\n startPageInfoMonitor()\n break\n }\n\n case 'pageInfoStop': {\n stopPageInfoMonitor()\n break\n }\n\n case 'inPageLink': {\n findTarget(getMsgBody(9))\n break\n }\n\n case 'reset': {\n resetIFrame(messageData)\n break\n }\n\n case 'init': {\n resizeIFrame()\n on('onInit', messageData.iframe)\n break\n }\n\n default: {\n if (\n Number(messageData.width) === 0 &&\n Number(messageData.height) === 0\n ) {\n warn(\n 'Unsupported message received (' +\n messageData.type +\n '), this is likely due to the iframe containing a later ' +\n 'version of iframe-resizer than the parent page'\n )\n } else {\n resizeIFrame()\n }\n }\n }\n }\n\n function hasSettings(iframeId) {\n var retBool = true\n\n if (!settings[iframeId]) {\n retBool = false\n warn(\n messageData.type +\n ' No settings for ' +\n iframeId +\n '. Message was: ' +\n msg\n )\n }\n\n return retBool\n }\n\n function iFrameReadyMsgReceived() {\n // eslint-disable-next-line no-restricted-syntax, guard-for-in\n for (var iframeId in settings) {\n trigger(\n 'iFrame requested init',\n createOutgoingMsg(iframeId),\n settings[iframeId].iframe,\n iframeId\n )\n }\n }\n\n function firstRun() {\n if (settings[iframeId]) {\n settings[iframeId].firstRun = false\n }\n }\n\n var msg = event.data,\n messageData = {},\n iframeId = null\n\n if ('[iFrameResizerChild]Ready' === msg) {\n iFrameReadyMsgReceived()\n } else if (isMessageForUs()) {\n messageData = processMsg()\n iframeId = messageData.id\n if (settings[iframeId]) {\n settings[iframeId].loaded = true\n }\n\n if (!isMessageFromMetaParent() && hasSettings(iframeId)) {\n log(iframeId, 'Received: ' + msg)\n\n if (checkIFrameExists() && isMessageFromIFrame()) {\n actionMsg()\n }\n }\n } else {\n info(iframeId, 'Ignored: ' + msg)\n }\n }\n\n function chkEvent(iframeId, funcName, val) {\n var func = null,\n retVal = null\n\n if (settings[iframeId]) {\n func = settings[iframeId][funcName]\n\n if ('function' === typeof func) {\n retVal = func(val)\n } else {\n throw new TypeError(\n funcName + ' on iFrame[' + iframeId + '] is not a function'\n )\n }\n }\n\n return retVal\n }\n\n function removeIframeListeners(iframe) {\n var iframeId = iframe.id\n delete settings[iframeId]\n }\n\n function closeIFrame(iframe) {\n var iframeId = iframe.id\n if (chkEvent(iframeId, 'onClose', iframeId) === false) {\n log(iframeId, 'Close iframe cancelled by onClose event')\n return\n }\n log(iframeId, 'Removing iFrame: ' + iframeId)\n\n try {\n // Catch race condition error with React\n if (iframe.parentNode) {\n iframe.parentNode.removeChild(iframe)\n }\n } catch (error) {\n warn(error)\n }\n\n chkEvent(iframeId, 'onClosed', iframeId)\n log(iframeId, '--')\n removeIframeListeners(iframe)\n if (destroyObserver) {\n destroyObserver.disconnect()\n destroyObserver = null\n }\n }\n\n function getPagePosition(iframeId) {\n if (null === pagePosition) {\n pagePosition = {\n x:\n window.pageXOffset === undefined\n ? document.documentElement.scrollLeft\n : window.pageXOffset,\n y:\n window.pageYOffset === undefined\n ? document.documentElement.scrollTop\n : window.pageYOffset\n }\n log(\n iframeId,\n 'Get page position: ' + pagePosition.x + ',' + pagePosition.y\n )\n }\n }\n\n function setPagePosition(iframeId) {\n if (null !== pagePosition) {\n window.scrollTo(pagePosition.x, pagePosition.y)\n log(\n iframeId,\n 'Set page position: ' + pagePosition.x + ',' + pagePosition.y\n )\n unsetPagePosition()\n }\n }\n\n function unsetPagePosition() {\n pagePosition = null\n }\n\n function resetIFrame(messageData) {\n function reset() {\n setSize(messageData)\n trigger('reset', 'reset', messageData.iframe, messageData.id)\n }\n\n log(\n messageData.id,\n 'Size reset requested by ' +\n ('init' === messageData.type ? 'host page' : 'iFrame')\n )\n getPagePosition(messageData.id)\n syncResize(reset, messageData, 'reset')\n }\n\n function setSize(messageData) {\n function setDimension(dimension) {\n if (!messageData.id) {\n log('undefined', 'messageData id not set')\n return\n }\n messageData.iframe.style[dimension] = messageData[dimension] + 'px'\n log(\n messageData.id,\n 'IFrame (' +\n iframeId +\n ') ' +\n dimension +\n ' set to ' +\n messageData[dimension] +\n 'px'\n )\n }\n\n function chkZero(dimension) {\n // FireFox sets dimension of hidden iFrames to zero.\n // So if we detect that set up an event to check for\n // when iFrame becomes visible.\n\n /* istanbul ignore next */ // Not testable in PhantomJS\n if (!hiddenCheckEnabled && '0' === messageData[dimension]) {\n hiddenCheckEnabled = true\n log(iframeId, 'Hidden iFrame detected, creating visibility listener')\n fixHiddenIFrames()\n }\n }\n\n function processDimension(dimension) {\n setDimension(dimension)\n chkZero(dimension)\n }\n\n var iframeId = messageData.iframe.id\n\n if (settings[iframeId]) {\n if (settings[iframeId].sizeHeight) {\n processDimension('height')\n }\n if (settings[iframeId].sizeWidth) {\n processDimension('width')\n }\n }\n }\n\n function syncResize(func, messageData, doNotSync) {\n /* istanbul ignore if */ // Not testable in PhantomJS\n if (\n doNotSync !== messageData.type &&\n requestAnimationFrame &&\n // including check for jasmine because had trouble getting spy to work in unit test using requestAnimationFrame\n !window.jasmine\n ) {\n log(messageData.id, 'Requesting animation frame')\n requestAnimationFrame(func)\n } else {\n func()\n }\n }\n\n function trigger(calleeMsg, msg, iframe, id, noResponseWarning) {\n function postMessageToIFrame() {\n var target = settings[id] && settings[id].targetOrigin\n log(\n id,\n '[' +\n calleeMsg +\n '] Sending msg to iframe[' +\n id +\n '] (' +\n msg +\n ') targetOrigin: ' +\n target\n )\n iframe.contentWindow.postMessage(msgId + msg, target)\n }\n\n function iFrameNotFound() {\n warn(id, '[' + calleeMsg + '] IFrame(' + id + ') not found')\n }\n\n function chkAndSend() {\n if (\n iframe &&\n 'contentWindow' in iframe &&\n null !== iframe.contentWindow\n ) {\n // Null test for PhantomJS\n postMessageToIFrame()\n } else {\n iFrameNotFound()\n }\n }\n\n function warnOnNoResponse() {\n function warning() {\n if (settings[id] && !settings[id].loaded && !errorShown) {\n errorShown = true\n warn(\n id,\n 'IFrame has not responded within ' +\n settings[id].warningTimeout / 1000 +\n ' seconds. Check iFrameResizer.contentWindow.js has been loaded in iFrame. This message can be ignored if everything is working, or you can set the warningTimeout option to a higher value or zero to suppress this warning.'\n )\n }\n }\n\n if (\n !!noResponseWarning &&\n settings[id] &&\n !!settings[id].warningTimeout\n ) {\n settings[id].msgTimeout = setTimeout(\n warning,\n settings[id].warningTimeout\n )\n }\n }\n\n var errorShown = false\n\n id = id || iframe.id\n\n if (settings[id]) {\n chkAndSend()\n warnOnNoResponse()\n }\n }\n\n function createOutgoingMsg(iframeId) {\n return (\n iframeId +\n ':' +\n settings[iframeId].bodyMarginV1 +\n ':' +\n settings[iframeId].sizeWidth +\n ':' +\n settings[iframeId].log +\n ':' +\n settings[iframeId].interval +\n ':' +\n settings[iframeId].enablePublicMethods +\n ':' +\n settings[iframeId].autoResize +\n ':' +\n settings[iframeId].bodyMargin +\n ':' +\n settings[iframeId].heightCalculationMethod +\n ':' +\n settings[iframeId].bodyBackground +\n ':' +\n settings[iframeId].bodyPadding +\n ':' +\n settings[iframeId].tolerance +\n ':' +\n settings[iframeId].inPageLinks +\n ':' +\n settings[iframeId].resizeFrom +\n ':' +\n settings[iframeId].widthCalculationMethod +\n ':' +\n settings[iframeId].mouseEvents\n )\n }\n\n function isNumber(value) {\n return typeof value === 'number'\n }\n\n function setupIFrame(iframe, options) {\n function setLimits() {\n function addStyle(style) {\n var styleValue = settings[iframeId][style]\n if (Infinity !== styleValue && 0 !== styleValue) {\n iframe.style[style] = isNumber(styleValue)\n ? styleValue + 'px'\n : styleValue\n log(iframeId, 'Set ' + style + ' = ' + iframe.style[style])\n }\n }\n\n function chkMinMax(dimension) {\n if (\n settings[iframeId]['min' + dimension] >\n settings[iframeId]['max' + dimension]\n ) {\n throw new Error(\n 'Value for min' +\n dimension +\n ' can not be greater than max' +\n dimension\n )\n }\n }\n\n chkMinMax('Height')\n chkMinMax('Width')\n\n addStyle('maxHeight')\n addStyle('minHeight')\n addStyle('maxWidth')\n addStyle('minWidth')\n }\n\n function newId() {\n var id = (options && options.id) || defaults.id + count++\n if (null !== document.getElementById(id)) {\n id += count++\n }\n return id\n }\n\n function ensureHasId(iframeId) {\n if (typeof iframeId !== 'string') {\n throw new TypeError('Invaild id for iFrame. Expected String')\n }\n\n if ('' === iframeId) {\n // eslint-disable-next-line no-multi-assign\n iframe.id = iframeId = newId()\n logEnabled = (options || {}).log\n log(\n iframeId,\n 'Added missing iframe ID: ' + iframeId + ' (' + iframe.src + ')'\n )\n }\n\n return iframeId\n }\n\n function setScrolling() {\n log(\n iframeId,\n 'IFrame scrolling ' +\n (settings[iframeId] && settings[iframeId].scrolling\n ? 'enabled'\n : 'disabled') +\n ' for ' +\n iframeId\n )\n iframe.style.overflow =\n false === (settings[iframeId] && settings[iframeId].scrolling)\n ? 'hidden'\n : 'auto'\n switch (settings[iframeId] && settings[iframeId].scrolling) {\n case 'omit': {\n break\n }\n\n case true: {\n iframe.scrolling = 'yes'\n break\n }\n\n case false: {\n iframe.scrolling = 'no'\n break\n }\n\n default: {\n iframe.scrolling = settings[iframeId]\n ? settings[iframeId].scrolling\n : 'no'\n }\n }\n }\n\n // The V1 iFrame script expects an int, where as in V2 expects a CSS\n // string value such as '1px 3em', so if we have an int for V2, set V1=V2\n // and then convert V2 to a string PX value.\n function setupBodyMarginValues() {\n if (\n 'number' ===\n typeof (settings[iframeId] && settings[iframeId].bodyMargin) ||\n '0' === (settings[iframeId] && settings[iframeId].bodyMargin)\n ) {\n settings[iframeId].bodyMarginV1 = settings[iframeId].bodyMargin\n settings[iframeId].bodyMargin =\n '' + settings[iframeId].bodyMargin + 'px'\n }\n }\n\n function checkReset() {\n // Reduce scope of firstRun to function, because IE8's JS execution\n // context stack is borked and this value gets externally\n // changed midway through running this function!!!\n var firstRun = settings[iframeId] && settings[iframeId].firstRun,\n resetRequertMethod =\n settings[iframeId] &&\n settings[iframeId].heightCalculationMethod in resetRequiredMethods\n\n if (!firstRun && resetRequertMethod) {\n resetIFrame({ iframe: iframe, height: 0, width: 0, type: 'init' })\n }\n }\n\n function setupIFrameObject() {\n if (settings[iframeId]) {\n settings[iframeId].iframe.iFrameResizer = {\n close: closeIFrame.bind(null, settings[iframeId].iframe),\n\n removeListeners: removeIframeListeners.bind(\n null,\n settings[iframeId].iframe\n ),\n\n resize: trigger.bind(\n null,\n 'Window resize',\n 'resize',\n settings[iframeId].iframe\n ),\n\n moveToAnchor: function (anchor) {\n trigger(\n 'Move to anchor',\n 'moveToAnchor:' + anchor,\n settings[iframeId].iframe,\n iframeId\n )\n },\n\n sendMessage: function (message) {\n message = JSON.stringify(message)\n trigger(\n 'Send Message',\n 'message:' + message,\n settings[iframeId].iframe,\n iframeId\n )\n }\n }\n }\n }\n\n // We have to call trigger twice, as we can not be sure if all\n // iframes have completed loading when this code runs. The\n // event listener also catches the page changing in the iFrame.\n function init(msg) {\n function iFrameLoaded() {\n trigger('iFrame.onload', msg, iframe, undefined, true)\n checkReset()\n }\n\n function createDestroyObserver(MutationObserver) {\n if (!iframe.parentNode) {\n return null\n }\n\n var destroyObserver = new MutationObserver(function (mutations) {\n mutations.forEach(function (mutation) {\n var removedNodes = Array.prototype.slice.call(mutation.removedNodes) // Transform NodeList into an Array\n removedNodes.forEach(function (removedNode) {\n if (removedNode === iframe) {\n closeIFrame(iframe)\n }\n })\n })\n })\n destroyObserver.observe(iframe.parentNode, {\n childList: true\n })\n return destroyObserver\n }\n\n var MutationObserver = getMutationObserver()\n if (MutationObserver) {\n destroyObserver = createDestroyObserver(MutationObserver)\n }\n\n addEventListener(iframe, 'load', iFrameLoaded)\n trigger('init', msg, iframe, undefined, true)\n }\n\n function checkOptions(options) {\n if ('object' !== typeof options) {\n throw new TypeError('Options is not an object')\n }\n }\n\n function copyOptions(options) {\n // eslint-disable-next-line no-restricted-syntax\n for (var option in defaults) {\n if (Object.prototype.hasOwnProperty.call(defaults, option)) {\n settings[iframeId][option] = Object.prototype.hasOwnProperty.call(\n options,\n option\n )\n ? options[option]\n : defaults[option]\n }\n }\n }\n\n function getTargetOrigin(remoteHost) {\n return '' === remoteHost ||\n null !== remoteHost.match(/^(about:blank|javascript:|file:\\/\\/)/)\n ? '*'\n : remoteHost\n }\n\n function depricate(key) {\n var splitName = key.split('Callback')\n\n if (splitName.length === 2) {\n var name =\n 'on' + splitName[0].charAt(0).toUpperCase() + splitName[0].slice(1)\n this[name] = this[key]\n delete this[key]\n warn(\n iframeId,\n \"Deprecated: '\" +\n key +\n \"' has been renamed '\" +\n name +\n \"'. The old method will be removed in the next major version.\"\n )\n }\n }\n\n function processOptions(options) {\n options = options || {}\n\n settings[iframeId] = Object.create(null) // Protect against prototype attacks\n settings[iframeId].iframe = iframe\n settings[iframeId].firstRun = true\n settings[iframeId].remoteHost =\n iframe.src && iframe.src.split('/').slice(0, 3).join('/')\n\n checkOptions(options)\n Object.keys(options).forEach(depricate, options)\n copyOptions(options)\n\n if (settings[iframeId]) {\n settings[iframeId].targetOrigin =\n true === settings[iframeId].checkOrigin\n ? getTargetOrigin(settings[iframeId].remoteHost)\n : '*'\n }\n }\n\n function beenHere() {\n return iframeId in settings && 'iFrameResizer' in iframe\n }\n\n var iframeId = ensureHasId(iframe.id)\n\n if (beenHere()) {\n warn(iframeId, 'Ignored iFrame, already setup.')\n } else {\n processOptions(options)\n setScrolling()\n setLimits()\n setupBodyMarginValues()\n init(createOutgoingMsg(iframeId))\n setupIFrameObject()\n }\n }\n\n function debouce(fn, time) {\n if (null === timer) {\n timer = setTimeout(function () {\n timer = null\n fn()\n }, time)\n }\n }\n\n var frameTimer = {}\n function debounceFrameEvents(fn, time, frameId) {\n if (!frameTimer[frameId]) {\n frameTimer[frameId] = setTimeout(function () {\n frameTimer[frameId] = null\n fn()\n }, time)\n }\n }\n\n // Not testable in PhantomJS\n /* istanbul ignore next */\n\n function fixHiddenIFrames() {\n function checkIFrames() {\n function checkIFrame(settingId) {\n function chkDimension(dimension) {\n return (\n '0px' ===\n (settings[settingId] && settings[settingId].iframe.style[dimension])\n )\n }\n\n function isVisible(el) {\n return null !== el.offsetParent\n }\n\n if (\n settings[settingId] &&\n isVisible(settings[settingId].iframe) &&\n (chkDimension('height') || chkDimension('width'))\n ) {\n trigger(\n 'Visibility change',\n 'resize',\n settings[settingId].iframe,\n settingId\n )\n }\n }\n\n Object.keys(settings).forEach(function (key) {\n checkIFrame(key)\n })\n }\n\n function mutationObserved(mutations) {\n log(\n 'window',\n 'Mutation observed: ' + mutations[0].target + ' ' + mutations[0].type\n )\n debouce(checkIFrames, 16)\n }\n\n function createMutationObserver() {\n var target = document.querySelector('body'),\n config = {\n attributes: true,\n attributeOldValue: false,\n characterData: true,\n characterDataOldValue: false,\n childList: true,\n subtree: true\n },\n observer = new MutationObserver(mutationObserved)\n\n observer.observe(target, config)\n }\n\n var MutationObserver = getMutationObserver()\n if (MutationObserver) {\n createMutationObserver()\n }\n }\n\n function resizeIFrames(event) {\n function resize() {\n sendTriggerMsg('Window ' + event, 'resize')\n }\n\n log('window', 'Trigger event: ' + event)\n debouce(resize, 16)\n }\n\n // Not testable in PhantomJS\n /* istanbul ignore next */\n function tabVisible() {\n function resize() {\n sendTriggerMsg('Tab Visible', 'resize')\n }\n\n if ('hidden' !== document.visibilityState) {\n log('document', 'Trigger event: Visibility change')\n debouce(resize, 16)\n }\n }\n\n function sendTriggerMsg(eventName, event) {\n function isIFrameResizeEnabled(iframeId) {\n return (\n settings[iframeId] &&\n 'parent' === settings[iframeId].resizeFrom &&\n settings[iframeId].autoResize &&\n !settings[iframeId].firstRun\n )\n }\n\n Object.keys(settings).forEach(function (iframeId) {\n if (isIFrameResizeEnabled(iframeId)) {\n trigger(eventName, event, settings[iframeId].iframe, iframeId)\n }\n })\n }\n\n function setupEventListeners() {\n addEventListener(window, 'message', iFrameListener)\n\n addEventListener(window, 'resize', function () {\n resizeIFrames('resize')\n })\n\n addEventListener(document, 'visibilitychange', tabVisible)\n\n addEventListener(document, '-webkit-visibilitychange', tabVisible)\n }\n\n function factory() {\n function init(options, element) {\n function chkType() {\n if (!element.tagName) {\n throw new TypeError('Object is not a valid DOM element')\n } else if ('IFRAME' !== element.tagName.toUpperCase()) {\n throw new TypeError(\n 'Expected