forked from
tokono.ma/diffuse
A music player that connects to your cloud/distributed storage.
feat: use cached entry from file tree in service worker
+10
-3
+10
-3
src/service-worker-offline.js
+10
-3
src/service-worker-offline.js
···
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////////////////////////////////////////////
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/**
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* Network-first strategy with content-addressed caching.
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+
* Cache-first for file-tree entries, network-first for everything else.
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*
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* Online → fetch from network, store response by CID, return it.
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* Offline → resolve the URL through the index, serve by CID from the content cache.
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* Online + in file tree → serve from cache if present, otherwise fetch and store.
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* Online + not in tree → fetch from network, store response by CID, return it.
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* Offline → resolve the URL through the index, serve by CID from the content cache.
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*
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* Partial responses (206) are passed through without caching so that
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* range requests for audio streaming work as normal.
···
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*/
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async function handleFetch(request) {
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if (navigator.onLine) {
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const { pathname } = new URL(request.url);
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if (await cidFromTree(pathname) !== undefined) {
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const cached = await lookup(request);
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if (cached) return cached;
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}
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+
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try {
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return await fetchAndStore(request);
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} catch {}