48 lines
1.4 KiB
JavaScript
48 lines
1.4 KiB
JavaScript
// Only this generic page is cached. Authenticated HTML, API responses, and
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// mutations always use the network. Bump the version when offline.html changes.
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const CACHE = "workspace-offline-v1";
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const OFFLINE_URL = "/offline.html";
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self.addEventListener("install", (event) => {
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event.waitUntil(
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caches.open(CACHE).then((cache) => cache.add(new Request(OFFLINE_URL, { cache: "reload" }))),
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);
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});
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self.addEventListener("activate", (event) => {
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event.waitUntil(
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(async () => {
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const keys = await caches.keys();
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await Promise.all(
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keys
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.filter((key) => key.startsWith("workspace-offline-") && key !== CACHE)
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.map((key) => caches.delete(key)),
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);
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await self.clients.claim();
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})(),
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);
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});
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self.addEventListener("fetch", (event) => {
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const { request } = event;
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const url = new URL(request.url);
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if (
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request.method !== "GET" ||
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request.mode !== "navigate" ||
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url.origin !== self.location.origin ||
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url.pathname.startsWith("/api/") ||
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url.pathname.startsWith("/_serverFn/") ||
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url.pathname.startsWith("/oauth/") ||
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url.pathname === "/mcp" ||
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url.pathname === "/health"
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) {
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return;
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}
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event.respondWith(
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fetch(request).catch(async () => {
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const cache = await caches.open(CACHE);
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return (await cache.match(OFFLINE_URL)) ?? Response.error();
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}),
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);
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});
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