Story 3: Migrate Service Worker to SvelteKit Native
- Replace workbox imports with SvelteKit $service-worker module
- Use build, files, version arrays for manual cache management
- Implement manual asset caching and cache cleanup
- Replace NavigationRoute with manual fetch handling
- Preserve all push notification event handlers exactly
- Preserve background sync and message handling functionality
- Service worker builds successfully as service-worker.mjs
SvelteKit native implementation ready - now need to enable registration
Refs: docs/plans/MigrateToNativeSvelteKitPWA.md
Complete implementation of fixes for queue processing, SSE connection display, service worker installation, and failing tests.
Key Changes:
- Fix queue processor startup with proper import and subscription mechanism
- Implement centralized API error handling middleware for proper HTTP status codes
- Enhance service worker configuration for PWA compliance and reliability
- Fix SSE connection display with reactive state management
- Add comprehensive test coverage and health check endpoints
Results:
- All 169 tests now passing (previously 16 failing)
- Queue items process immediately from pending to success/error states
- Real-time SSE connection status with auto-reconnection logic
- Proper PWA functionality with working service worker registration
- API endpoints return correct HTTP status codes (400/404/409) instead of 500 errors
This resolves the critical issues preventing core app functionality and enables proper production deployment.
- Fix EventSource is not defined error in queue dashboard
- Add browser guards for all EventSource usage
- Replace static constants (EventSource.OPEN/CLOSED) with numeric values
- Fix setInterval SSR violation in LLM health indicator
- Replace $effect anti-pattern with onMount in share page
- Add comprehensive SvelteKit SSR best practices documentation
- Add SSR audit and testing verification
All changes follow SvelteKit best practices and are verified against
official documentation. Production build succeeds with no SSR errors.
Closes: FixEventSourceSSR
See: docs/outcomes/FixEventSourceSSR.md
