spouliot
0c8723ef84
SW fetch() wraps SSE responses in a buffered Response, preventing SignalR streaming — handshakes time out after 15s as a result. Exclude /hubs/ and /Kiosk/PollSession so the browser handles them directly without SW wrapping. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
27 lines
1.1 KiB
JavaScript
27 lines
1.1 KiB
JavaScript
// Minimal service worker — required for PWA installability.
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// No caching: all requests pass through to the network.
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// Exists solely so browsers recognize the site as installable
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// (iOS/Android persist camera permissions after "Add to Home Screen").
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//
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// IMPORTANT: /hubs/ (SignalR) requests are excluded from interception entirely.
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// Service worker fetch() wraps SSE/WebSocket responses in a buffered Response,
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// which prevents real-time streaming — SignalR handshakes time out as a result.
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const SKIP_PREFIXES = ['/hubs/', '/Kiosk/PollSession'];
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self.addEventListener('install', () => self.skipWaiting());
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self.addEventListener('activate', e => e.waitUntil(self.clients.claim()));
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self.addEventListener('fetch', e => {
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const url = new URL(e.request.url);
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// Always skip cross-origin requests
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if (url.origin !== self.location.origin) return;
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// Skip SignalR hubs and kiosk polling — let the browser handle these directly
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if (SKIP_PREFIXES.some(p => url.pathname.startsWith(p))) return;
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// Passthrough: no caching, no modification
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e.respondWith(fetch(e.request));
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});
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