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fix(adapter-cloudflare): await initialization on every request to prevent race condition #15161

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Merged
teemingc merged 3 commits into from
Jan 14, 2026
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fix(adapter-cloudflare): await initialization on every request to prevent race condition #15161

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fix(adapter-cloudflare): await initialization on every request to pre…
thomastheyoung Jan 13, 2026
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thomastheyoung Jan 14, 2026
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teemingc Jan 14, 2026
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5 changes: 5 additions & 0 deletions .changeset/funny-pets-melt.md
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@@ -0,0 +1,5 @@
---
"@sveltejs/adapter-cloudflare": patch
---

fix(adapter-cloudflare): await initialization on every request to prevent race condition
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4 changes: 3 additions & 1 deletion packages/adapter-cloudflare/src/worker.js
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Expand Up @@ -46,9 +46,11 @@ export default {
async fetch(req, env, ctx) {
if (!origin) {
origin = new URL(req.url).origin;
await initialized;
}

// always await initialization to prevent race condition with concurrent requests
await initialized;

// skip cache if "cache-control: no-cache" in request
let pragma = req.headers.get('cache-control') || '';
let res = !pragma.includes('no-cache') && (await Cache.lookup(req));
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