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fix(vercel-sandbox): disable headers timeout on default agent #172

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fix(vercel-sandbox): disable headers timeout on default agent #172

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5 changes: 5 additions & 0 deletions .changeset/disable-headers-timeout.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
---
"@vercel/sandbox": patch
---

Disable `headersTimeout` on the default undici Agent so long-running `cmd.wait()` long-polls don't abort at undici's 5-minute default. Previously `bodyTimeout` was disabled but `headersTimeout` was left at the default, which cut off `cmd.wait()` when a sandbox command took longer than 5 minutes — even though the sandbox itself was still alive.
1 change: 1 addition & 0 deletions packages/vercel-sandbox/src/api-client/base-client.ts
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Expand Up @@ -15,6 +15,7 @@ export interface RequestParams extends RequestInit {

const DEFAULT_AGENT = new Agent({
bodyTimeout: 0, // disable body timeout to allow long logs streaming
headersTimeout: 0, // disable headers timeout so long-poll cmd.wait() doesn't abort after undici's 5-min default
});

/**
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