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Diffstat (limited to 'Utilities/LibMatrix.E2eeTestKit/wwwroot/service-worker.published.js')
-rw-r--r-- | Utilities/LibMatrix.E2eeTestKit/wwwroot/service-worker.published.js | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/Utilities/LibMatrix.E2eeTestKit/wwwroot/service-worker.published.js b/Utilities/LibMatrix.E2eeTestKit/wwwroot/service-worker.published.js new file mode 100644 index 0000000..003e3e7 --- /dev/null +++ b/Utilities/LibMatrix.E2eeTestKit/wwwroot/service-worker.published.js @@ -0,0 +1,55 @@ +// Caution! Be sure you understand the caveats before publishing an application with +// offline support. See https://aka.ms/blazor-offline-considerations + +self.importScripts('./service-worker-assets.js'); +self.addEventListener('install', event => event.waitUntil(onInstall(event))); +self.addEventListener('activate', event => event.waitUntil(onActivate(event))); +self.addEventListener('fetch', event => event.respondWith(onFetch(event))); + +const cacheNamePrefix = 'offline-cache-'; +const cacheName = `${cacheNamePrefix}${self.assetsManifest.version}`; +const offlineAssetsInclude = [ /\.dll$/, /\.pdb$/, /\.wasm/, /\.html/, /\.js$/, /\.json$/, /\.css$/, /\.woff$/, /\.png$/, /\.jpe?g$/, /\.gif$/, /\.ico$/, /\.blat$/, /\.dat$/ ]; +const offlineAssetsExclude = [ /^service-worker\.js$/ ]; + +// Replace with your base path if you are hosting on a subfolder. Ensure there is a trailing '/'. +const base = "/"; +const baseUrl = new URL(base, self.origin); +const manifestUrlList = self.assetsManifest.assets.map(asset => new URL(asset.url, baseUrl).href); + +async function onInstall(event) { + console.info('Service worker: Install'); + + // Fetch and cache all matching items from the assets manifest + const assetsRequests = self.assetsManifest.assets + .filter(asset => offlineAssetsInclude.some(pattern => pattern.test(asset.url))) + .filter(asset => !offlineAssetsExclude.some(pattern => pattern.test(asset.url))) + .map(asset => new Request(asset.url, { integrity: asset.hash, cache: 'no-cache' })); + await caches.open(cacheName).then(cache => cache.addAll(assetsRequests)); +} + +async function onActivate(event) { + console.info('Service worker: Activate'); + + // Delete unused caches + const cacheKeys = await caches.keys(); + await Promise.all(cacheKeys + .filter(key => key.startsWith(cacheNamePrefix) && key !== cacheName) + .map(key => caches.delete(key))); +} + +async function onFetch(event) { + let cachedResponse = null; + if (event.request.method === 'GET') { + // For all navigation requests, try to serve index.html from cache, + // unless that request is for an offline resource. + // If you need some URLs to be server-rendered, edit the following check to exclude those URLs + const shouldServeIndexHtml = event.request.mode === 'navigate' + && !manifestUrlList.some(url => url === event.request.url); + + const request = shouldServeIndexHtml ? 'index.html' : event.request; + const cache = await caches.open(cacheName); + cachedResponse = await cache.match(request); + } + + return cachedResponse || fetch(event.request); +} |