Timed out after {value} ms while waiting for the WS endpoint URL to appear in stdout!
How to fix the Puppeteer error: Timed out after {value} ms while waiting for the WS endpoint URL to appear in stdout!
Error
Timed out after ${timeout} ms while waiting for the WS endpoint URL to appear in stdout!
What it means
Puppeteer raised this from its browser launch code. In practice, it usually means your script reached a browser, page, frame, element, or option state that the API cannot use safely.
How to fix it
- Increase the relevant timeout only after checking why the condition never completes.
- Use a less strict wait condition such as
domcontentloaded, or wait for a specific selector/response instead of generic network idle. - Add retries around navigation or waits that depend on remote services.
Minimal guard
try {
// Run the Puppeteer operation that triggers this error.
} catch (error) {
if (error instanceof Error && error.message.includes("Timed out after ")) {
// Apply the fix above, then retry or fail with a clearer message.
}
throw error;
}