feat: add preconnect and dns-prefetch resource hints (#409)#429
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RUKAYAT-CODER merged 3 commits intoMay 28, 2026
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- Add resourceHints utility with applyResourceHints() and prefetchExternalResources() - Web: injects <link rel=preconnect/dns-prefetch> tags into document head - Native: fires parallel HEAD requests to warm up TCP/TLS connections - DEFAULT_RESOURCE_HINTS covers CDN, analytics, ads, and Sentry - Call prefetchExternalResources() at app startup in _layout.tsx - Add 16 unit tests covering both platforms, idempotency, and invalid URLs - Fix pre-existing ESLint warning: convert RootLayout to arrow function
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kindly resolve conflict ad fix worflow. |
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Summary
Adds preconnect and DNS-prefetch hints for external resources to reduce latency for CDN, analytics, and ads.
Changes
src/utils/resourceHints.ts—applyResourceHints()injects<link>tags on web and fires parallel HEAD requests on native;prefetchExternalResources()fire-and-forget wrapper;DEFAULT_RESOURCE_HINTScovers CDN, analytics, ads, Sentryapp/_layout.tsx— callsprefetchExternalResources()at module level before any component mountssrc/__tests__/utils/resourceHints.test.ts— 16 tests covering both platforms, idempotency, invalid URLs, parallel executionAcceptance Criteria
Pr Closes #409