Private
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ksmithandClaude Sonnet 5
e9ad5d832b
The service worker already auto-updates in the background (registerType: 'autoUpdate' + an unconditional self.skipWaiting()), but that just silently swaps the SW -- nothing ever told an already-open tab its already-loaded JS had fallen behind, so a long-lived tab could run a stale build indefinitely. Switched registerType to 'prompt': a new SW now installs and waits rather than taking over immediately, activating only when the page explicitly asks (sw.ts's skipWaiting is now conditional on a SKIP_WAITING message instead of unconditional). UpdateBanner.tsx uses vite-plugin-pwa's virtual:pwa-register/react hook to surface that as a small banner with a Reload button, and polls for updates hourly so a tab that never navigates still notices eventually. Verified a fresh install shows no banner (correct baseline) and the code follows the documented registerType: 'prompt' pattern exactly. Could not get this sandbox's browser to actually detect a swapped service-worker file via registration.update() during testing -- confirmed via direct inspection that the server serves the new content correctly and ruled out timing, so this looks like an update-check limitation specific to this automated browser environment rather than a bug; the real test is the next live deploy. Also adds a "frontend-preview" launch.json entry (npm run preview) -- the only way to exercise the real production service worker locally, same reasoning as vite.config.ts's existing `preview.proxy` section. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
44 lines
1.4 KiB
TypeScript
44 lines
1.4 KiB
TypeScript
import { useRegisterSW } from 'virtual:pwa-register/react'
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import './UpdateBanner.css'
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// The service worker (registerType: 'prompt', sw.ts) already installs and
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// caches a new version silently in the background -- but a long-lived tab
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// never navigates, and a page only checks for a new SW on navigation by
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// default, so a tab left open for hours could sit on a stale check
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// indefinitely. This polls explicitly so "reload available" shows up
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// without the user having to close and reopen the app first.
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const UPDATE_CHECK_INTERVAL_MS = 60 * 60 * 1000
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export function UpdateBanner() {
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const {
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needRefresh: [needRefresh, setNeedRefresh],
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updateServiceWorker,
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} = useRegisterSW({
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onRegisteredSW(_url, registration) {
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if (!registration) return
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setInterval(() => registration.update(), UPDATE_CHECK_INTERVAL_MS)
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},
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})
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if (!needRefresh) return null
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return (
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<div className="update-banner" role="status">
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<span>A new version of DS Chat is available.</span>
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<div className="update-banner-actions">
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<button type="button" className="btn-primary" onClick={() => updateServiceWorker(true)}>
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Reload
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</button>
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<button
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type="button"
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className="update-banner-dismiss"
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onClick={() => setNeedRefresh(false)}
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aria-label="Dismiss"
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>
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×
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</button>
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</div>
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</div>
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)
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}
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