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{"version":3,"file":"workbox-broadcast-update.dev.js","sources":["../_version.js","../responsesAreSame.js","../utils/constants.js","../BroadcastCacheUpdate.js","../BroadcastUpdatePlugin.js"],"sourcesContent":["\"use strict\";\n// @ts-ignore\ntry {\n self['workbox:broadcast-update:6.5.3'] && _();\n}\ncatch (e) { }\n","/*\n Copyright 2018 Google LLC\n\n Use of this source code is governed by an MIT-style\n license that can be found in the LICENSE file or at\n https://opensource.org/licenses/MIT.\n*/\nimport { WorkboxError } from 'workbox-core/_private/WorkboxError.js';\nimport { logger } from 'workbox-core/_private/logger.js';\nimport './_version.js';\n/**\n * Given two `Response's`, compares several header values to see if they are\n * the same or not.\n *\n * @param {Response} firstResponse\n * @param {Response} secondResponse\n * @param {Array<string>} headersToCheck\n * @return {boolean}\n *\n * @memberof workbox-broadcast-update\n */\nconst responsesAreSame = (firstResponse, secondResponse, headersToCheck) => {\n if (process.env.NODE_ENV !== 'production') {\n if (!(firstResponse instanceof Response && secondResponse instanceof Response)) {\n throw new WorkboxError('invalid-responses-are-same-args');\n }\n }\n const atLeastOneHeaderAvailable = headersToCheck.some((header) => {\n return (firstResponse.headers.has(header) && secondResponse.headers.has(header));\n });\n if (!atLeastOneHeaderAvailable) {\n if (process.env.NODE_ENV !== 'production') {\n logger.warn(`Unable to determine where the response has been updated ` +\n `because none of the headers that would be checked are present.`);\n logger.debug(`Attempting to compare the following: `, firstResponse, secondResponse, headersToCheck);\n }\n // Just return true, indicating the that responses are the same, since we\n // can't determine otherwise.\n return true;\n }\n return headersToCheck.every((header) => {\n const headerStateComparison = firstResponse.headers.has(header) === secondResponse.headers.has(header);\n const headerValueComparison = firstResponse.headers.get(header) === secondResponse.headers.get(header);\n return headerStateComparison && headerValueComparison;\n });\n};\nexport { responsesAreSame };\n","/*\n Copyright 2018 Google LLC\n\n Use of this source code is governed by an MIT-style\n license that can be found in the LICENSE file or at\n https://opensource.org/licenses/MIT.\n*/\nimport '../_version.js';\nexport const CACHE_UPDATED_MESSAGE_TYPE = 'CACHE_UPDATED';\nexport const CACHE_UPDATED_MESSAGE_META = 'workbox-broadcast-update';\nexport const NOTIFY_ALL_CLIENTS = true;\nexport const DEFAULT_HEADERS_TO_CHECK = [\n 'content-length',\n 'etag',\n 'last-modified',\n];\n","/*\n Copyright 2018 Google LLC\n\n Use of this source code is governed by an MIT-style\n license that can be found in the LICENSE file or at\n https://opensource.org/licenses/MIT.\n*/\nimport { assert } from 'workbox-core/_private/assert.js';\nimport { timeout } from 'workbox-core/_private/timeout.js';\nimport { resultingClientExists } from 'workbox-core/_private/resultingClientExists.js';\nimport { logger } from 'workbox-core/_private/logger.js';\nimport { responsesAreSame } from './responsesAreSame.js';\nimport { CACHE_UPDATED_MESSAGE_META, CACHE_UPDATED_MESSAGE_TYPE, DEFAULT_HEADERS_TO_CHECK, NOTIFY_ALL_CLIENTS, } from './utils/constants.js';\nimport './_version.js';\n// UA-sniff Safari: https://stackoverflow.com/questions/7944460/detect-safari-browser\n// TODO(philipwalton): remove once this Safari bug fix has been released.\n// https://bugs.webkit.org/show_bug.cgi?id=201169\nconst isSafari = /^((?!chrome|android).)*safari/i.test(navigator.userAgent);\n/**\n * Generates the default payload used in update messages. By default the\n * payload includes the `cacheName` and `updatedURL` fields.\n *\n * @return Object\n * @private\n */\nfunction defaultPayloadGenerator(data) {\n return {\n cacheName: data.cacheName,\n updatedURL: data.request.url,\n };\n}\n/**\n * Uses the `postMessage()` API to inform any open windows/tabs when a cached\n * response has been updated.\n *\n * For efficiency's sake, the underlying response bodies are not compared;\n * only specific response headers are checked.\n *\n * @memberof workbox-broadcast-update\n */\nclass BroadcastCacheUpdate {\n /**\n * Construct a BroadcastCacheUpdate instance with a specific `channelName` to\n * broadcast messages on\n *\n * @param {Object} [options]\n * @param {Array<string>} [options.headersToCheck=['content-length', 'etag', 'last-modified']]\n * A list of headers that will be used to determine whether the responses\n * differ.\n * @param {string} [options.generatePayload] A function whose return value\n * will be used as the `payload` field in any cache update messages sent\n * to the window clients.\n * @param {boolean} [options.notifyAllClients=true] If true (the default) then\n * all open clients will receive a message. If false, then only the client\n * that make the original request will be notified of the update.\n */\n constructor({ generatePayload, headersToCheck, notifyAllClients, } = {}) {\n this._headersToCheck = headersToCheck || DEFAULT_HEADERS_TO_CHECK;\n this._generatePayload = generatePayload || defaultPayloadGenerator;\n this._notifyAllClients = notifyAllClients !== null && notifyAllClients !== void 0 ? notifyAllClients : NOTIFY_ALL_CLIENTS;\n }\n /**\n * Compares two [Responses](https://developer.mozilla.org/en-US/docs/Web/API/Response)\n * and sends a message (via `postMessage()`) to all window clients if the\n * responses differ. Neither of the Responses can be\n * [opaque](https://developer.chrome.com/docs/workbox/caching-resources-during-runtime/#opaque-responses).\n *\n * The message that's posted has the following format (where `payload` can\n * be customized via the `generatePayload` option the instance is created\n * with):\n *\n * ```\n * {\n * type: 'CACHE_UPDATED',\n * meta: 'workbox-broadcast-update',\n * payload: {\n * cacheName: 'the-cache-name',\n * updatedURL: 'https://example.com/'\n * }\n * }\n * ```\n *\n * @param {Object} options\n * @param {Response} [options.oldResponse] Cached response to compare.\n * @param {Response} options.newResponse Possibly updated response to compare.\n * @param {Request} options.request The request.\n * @param {string} options.cacheName Name of the cache the responses belong\n * to. This is included in the broadcast message.\n * @param {Event} options.event event The event that triggered\n * this possible cache update.\n * @return {Promise} Resolves once the update is sent.\n */\n async notifyIfUpdated(options) {\n if (process.env.NODE_ENV !== 'production') {\n assert.isType(options.cacheName, 'string', {\n moduleName: 'workbox-broadcast-update',\n className: 'BroadcastCacheUpdate',\n funcName: 'notifyIfUpdated',\n paramName: 'cacheName',\n });\n assert.isInstance(options.newResponse, Response, {\n moduleName: 'workbox-broadcast-update',\n className: 'BroadcastCacheUpdate',\n funcName: 'notifyIfUpdated',\n paramName: 'newResponse',\n });\n assert.isInstance(options.request, Request, {\n moduleName: 'workbox-broadcast-update',\n className: 'BroadcastCacheUpdate',\n funcName: 'notifyIfUpdated',\n paramName: 'request',\n });\n }\n // Without two responses there is nothing to compare.\n if (!options.oldResponse) {\n return;\n }\n if 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at\n https://opensource.org/licenses/MIT.\n*/\nimport { dontWaitFor } from 'workbox-core/_private/dontWaitFor.js';\nimport { BroadcastCacheUpdate, } from './BroadcastCacheUpdate.js';\nimport './_version.js';\n/**\n * This plugin will automatically broadcast a message whenever a cached response\n * is updated.\n *\n * @memberof workbox-broadcast-update\n */\nclass BroadcastUpdatePlugin {\n /**\n * Construct a {@link workbox-broadcast-update.BroadcastUpdate} instance with\n * the passed options and calls its `notifyIfUpdated` method whenever the\n * plugin's `cacheDidUpdate` callback is invoked.\n *\n * @param {Object} [options]\n * @param {Array<string>} [options.headersToCheck=['content-length', 'etag', 'last-modified']]\n * A list of headers that will be used to determine whether the responses\n * differ.\n * @param {string} [options.generatePayload] A function whose return value\n * will be used as the `payload` field in any cache update messages sent\n * to the window clients.\n 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