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GeezerVison is showing github.com — practicejavascript.com/src/service-worker.js at master · PracticeJavaScript/practicejavascript.com Expand file tree/ Copy pathservice-worker.jsMore file actions 268 lines (224 loc) · 10.3 KB / Copy pathservice-worker.jsFile metadata and controls268 lines (224 loc) · 10.3 KB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 /** * Copyright 2016 Google Inc. All rights reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ // DO NOT EDIT THIS GENERATED OUTPUT DIRECTLY! // This file should be overwritten as part of your build process. // If you need to extend the behavior of the generated service worker, the best approach is to write // additional code and include it using the importScripts option: // https://github.com/GoogleChrome/sw-precache#importscripts-arraystring // // Alternatively, it's possible to make changes to the underlying template file and then use that as the // new base for generating output, via the templateFilePath option: // https://github.com/GoogleChrome/sw-precache#templatefilepath-string // // If you go that route, make sure that whenever you update your sw-precache dependency, you reconcile any // changes made to this original template file with your modified copy. // This generated service worker JavaScript will precache your site's resources. // The code needs to be saved in a .js file at the top-level of your site, and registered // from your pages in order to be used. See // https://github.com/googlechrome/sw-precache/blob/master/demo/app/js/service-worker-registration.js // for an example of how you can register this script and handle various service worker events. /* eslint-env worker, serviceworker */ /* eslint-disable indent, no-unused-vars, no-multiple-empty-lines, max-nested-callbacks, space-before-function-paren, quotes, comma-spacing */ 'use strict'; var precacheConfig = [["/dist/css/style.css","ba4d66c91d1ed66848154a34ab4948cf"],["/dist/img/back.svg","898ada2a32ec64bd5b6959c22e8f231d"],["/dist/img/monitor.svg","348592da5567b5a3c46acfb5dcd341bc"],["/dist/img/next.svg","045593410b9f51390e750b9e1e7fff15"],["/dist/img/reload.svg","a0ab1b765280e4d22e6fb747042f6503"],["/dist/img/shuffle.svg","3a5e3c1bf04eb3493d8a2ffa547aa58f"],["/dist/img/social-banner.png","7c1a8058bb3d00c2b40283c735748cfc"],["/dist/js/bundle.min.js","ba4cc9351b6d922df7a491a73df81778"],["/dist/js/loadJS.js","72c55936069f60560a386e46f462c73a"],["/dist/js/sw-registration.js","677217d8e642c1ccff69fc01c96b4431"],["/index.html","c7522a5d3255caca0f12c5282ef0644d"]]; var cacheName = 'sw-precache-v3--' + (self.registration ? self.registration.scope : ''); var ignoreUrlParametersMatching = [/^utm_/]; var addDirectoryIndex = function (originalUrl, index) { var url = new URL(originalUrl); if (url.pathname.slice(-1) === '/') { url.pathname += index; } return url.toString(); }; var cleanResponse = function (originalResponse) { // If this is not a redirected response, then we don't have to do anything. if (!originalResponse.redirected) { return Promise.resolve(originalResponse); } // Firefox 50 and below doesn't support the Response.body stream, so we may // need to read the entire body to memory as a Blob. var bodyPromise = 'body' in originalResponse ? Promise.resolve(originalResponse.body) : originalResponse.blob(); return bodyPromise.then(function(body) { // new Response() is happy when passed either a stream or a Blob. return new Response(body, { headers: originalResponse.headers, status: originalResponse.status, statusText: originalResponse.statusText }); }); }; var createCacheKey = function (originalUrl, paramName, paramValue, dontCacheBustUrlsMatching) { // Create a new URL object to avoid modifying originalUrl. var url = new URL(originalUrl); // If dontCacheBustUrlsMatching is not set, or if we don't have a match, // then add in the extra cache-busting URL parameter. if (!dontCacheBustUrlsMatching || !(url.pathname.match(dontCacheBustUrlsMatching))) { url.search += (url.search ? '&' : '') + encodeURIComponent(paramName) + '=' + encodeURIComponent(paramValue); } return url.toString(); }; var isPathWhitelisted = function (whitelist, absoluteUrlString) { // If the whitelist is empty, then consider all URLs to be whitelisted. if (whitelist.length === 0) { return true; } // Otherwise compare each path regex to the path of the URL passed in. var path = (new URL(absoluteUrlString)).pathname; return whitelist.some(function(whitelistedPathRegex) { return path.match(whitelistedPathRegex); }); }; var stripIgnoredUrlParameters = function (originalUrl, ignoreUrlParametersMatching) { var url = new URL(originalUrl); // Remove the hash; see https://github.com/GoogleChrome/sw-precache/issues/290 url.hash = ''; url.search = url.search.slice(1) // Exclude initial '?' .split('&') // Split into an array of 'key=value' strings .map(function(kv) { return kv.split('='); // Split each 'key=value' string into a [key, value] array }) .filter(function(kv) { return ignoreUrlParametersMatching.every(function(ignoredRegex) { return !ignoredRegex.test(kv[0]); // Return true iff the key doesn't match any of the regexes. }); }) .map(function(kv) { return kv.join('='); // Join each [key, value] array into a 'key=value' string }) .join('&'); // Join the array of 'key=value' strings into a string with '&' in between each return url.toString(); }; var hashParamName = '_sw-precache'; var urlsToCacheKeys = new Map( precacheConfig.map(function(item) { var relativeUrl = item[0]; var hash = item[1]; var absoluteUrl = new URL(relativeUrl, self.location); var cacheKey = createCacheKey(absoluteUrl, hashParamName, hash, false); return [absoluteUrl.toString(), cacheKey]; }) ); function setOfCachedUrls(cache) { return cache.keys().then(function(requests) { return requests.map(function(request) { return request.url; }); }).then(function(urls) { return new Set(urls); }); } self.addEventListener('install', function(event) { event.waitUntil( caches.open(cacheName).then(function(cache) { return setOfCachedUrls(cache).then(function(cachedUrls) { return Promise.all( Array.from(urlsToCacheKeys.values()).map(function(cacheKey) { // If we don't have a key matching url in the cache already, add it. if (!cachedUrls.has(cacheKey)) { var request = new Request(cacheKey, {credentials: 'same-origin'}); return fetch(request).then(function(response) { // Bail out of installation unless we get back a 200 OK for // every request. if (!response.ok) { throw new Error('Request for ' + cacheKey + ' returned a ' + 'response with status ' + response.status); } return cleanResponse(response).then(function(responseToCache) { return cache.put(cacheKey, responseToCache); }); }); } }) ); }); }).then(function() { // Force the SW to transition from installing -> active state return self.skipWaiting(); }) ); }); self.addEventListener('activate', function(event) { var setOfExpectedUrls = new Set(urlsToCacheKeys.values()); event.waitUntil( caches.open(cacheName).then(function(cache) { return cache.keys().then(function(existingRequests) { return Promise.all( existingRequests.map(function(existingRequest) { if (!setOfExpectedUrls.has(existingRequest.url)) { return cache.delete(existingRequest); } }) ); }); }).then(function() { return self.clients.claim(); }) ); }); self.addEventListener('fetch', function(event) { if (event.request.method === 'GET') { // Should we call event.respondWith() inside this fetch event handler? // This needs to be determined synchronously, which will give other fetch // handlers a chance to handle the request if need be. var shouldRespond; // First, remove all the ignored parameters and hash fragment, and see if we // have that URL in our cache. If so, great! shouldRespond will be true. var url = stripIgnoredUrlParameters(event.request.url, ignoreUrlParametersMatching); shouldRespond = urlsToCacheKeys.has(url); // If shouldRespond is false, check again, this time with 'index.html' // (or whatever the directoryIndex option is set to) at the end. var directoryIndex = 'index.html'; if (!shouldRespond && directoryIndex) { url = addDirectoryIndex(url, directoryIndex); shouldRespond = urlsToCacheKeys.has(url); } // If shouldRespond is still false, check to see if this is a navigation // request, and if so, whether the URL matches navigateFallbackWhitelist. var navigateFallback = ''; if (!shouldRespond && navigateFallback && (event.request.mode === 'navigate') && isPathWhitelisted([], event.request.url)) { url = new URL(navigateFallback, self.location).toString(); shouldRespond = urlsToCacheKeys.has(url); } // If shouldRespond was set to true at any point, then call // event.respondWith(), using the appropriate cache key. if (shouldRespond) { event.respondWith( caches.open(cacheName).then(function(cache) { return cache.match(urlsToCacheKeys.get(url)).then(function(response) { if (response) { return response; } throw Error('The cached response that was expected is missing.'); }); }).catch(function(e) { // Fall back to just fetch()ing the request if some unexpected error // prevented the cached response from being valid. console.warn('Couldn\'t serve response for "%s" from cache: %O', event.request.url, e); return fetch(event.request); }) ); } } }); |
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