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Merged
aryanjsx merged 1 commit into from
Feb 12, 2026
Merged

Enhance caching strategy in service worker and update Vercel configur… #7

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18 changes: 13 additions & 5 deletions frontend/public/service-worker.js
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Original file line number Diff line number Diff line change
Expand Up @@ -4,18 +4,16 @@
*/

// Cache versioning - increment to invalidate all caches
const CACHE_VERSION = 3;
const CACHE_VERSION = 4;
const CACHE_PREFIX = "know-india";

const CACHE_NAME = `${CACHE_PREFIX}-cache-v${CACHE_VERSION}`;
const IMAGE_CACHE_NAME = `${CACHE_PREFIX}-images-v${CACHE_VERSION}`;
const API_CACHE_NAME = `${CACHE_PREFIX}-api-v${CACHE_VERSION}`;
const CURRENT_CACHES = [CACHE_NAME, IMAGE_CACHE_NAME, API_CACHE_NAME];

// Static assets to cache on install
// Static assets to cache on install (exclude / and index.html so deploys always get fresh HTML)
const STATIC_ASSETS = [
"/",
"/index.html",
"/offline.html",
"/manifest.json",
"/logo192.png",
Expand Down Expand Up @@ -111,7 +109,17 @@ self.addEventListener("fetch", (event) => {
return;
}

// Other requests - network first
// HTML / navigation - network only, never cache (avoids white page after deploy)
if (isNavigationRequest(request) || url.pathname === "/" || url.pathname === "/index.html") {
event.respondWith(
fetch(request)
.then((response) => response)
.catch(() => caches.match("/offline.html"))
);
return;
}

// Other requests (JS, CSS, etc.) - network first, then cache
event.respondWith(
fetch(request)
.then((response) => {
Expand Down
6 changes: 4 additions & 2 deletions frontend/vercel.json
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,9 @@
"buildCommand": "npm run build",
"outputDirectory": "build",
"framework": "create-react-app",
"rewrites": [
{ "source": "/(.*)", "destination": "/index.html" }
"rewrites": [{ "source": "/(.*)", "destination": "/index.html" }],
"headers": [
{ "source": "/index.html", "headers": [{ "key": "Cache-Control", "value": "no-cache, no-store, must-revalidate" }] },
{ "source": "/", "headers": [{ "key": "Cache-Control", "value": "no-cache, no-store, must-revalidate" }] }
]
}
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