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fix(cache): serve HTML with no-store so deploys reach browsers without a hard refresh

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Browsers were serving a cached old home.html on normal reloads (only incognito/
hard-refresh got the new one). HTML now sends Cache-Control: no-store; versioned
assets keep ETag revalidation. Bumps build marker to push4.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Sravan
2026-06-24 16:30:17 +05:30
parent f7ddb2e7ae
commit f4a23ae805
2 changed files with 11 additions and 4 deletions
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server/static.js
+10 -3
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@@ -23,15 +23,22 @@ function serveStatic(req, res) {
// tiny 304 (no re-download) when nothing changed — fast reloads, but always fresh on edits.
fs.stat(fp, (serr, st) => {
if (serr || !st.isFile()) return json(res, 404, { error: 'not found' });
const ct = MIME[path.extname(fp)] || 'application/octet-stream';
const ext = path.extname(fp);
const ct = MIME[ext] || 'application/octet-stream';
// HTML entry pages are NEVER cached (no-store) so a deploy reaches every browser on the
// next load — no hard-refresh needed. Versioned assets (e.g. icons.js?v=) still revalidate
// cheaply via ETag/304.
const isHtml = ext === '.html';
const etag = '"' + st.size.toString(16) + '-' + Math.round(st.mtimeMs).toString(16) + '"';
if (req.headers['if-none-match'] === etag) {
if (!isHtml && req.headers['if-none-match'] === etag) {
res.writeHead(304, { ETag: etag, 'Cache-Control': 'no-cache' });
return res.end();
}
fs.readFile(fp, (err, data) => {
if (err) return json(res, 404, { error: 'not found' });
res.writeHead(200, { 'Content-Type': ct, 'Cache-Control': 'no-cache', ETag: etag, 'Content-Length': st.size });
const headers = { 'Content-Type': ct, 'Content-Length': st.size, 'Cache-Control': isHtml ? 'no-store, must-revalidate' : 'no-cache' };
if (!isHtml) headers.ETag = etag;
res.writeHead(200, headers);
res.end(data);
});
});