garrytan/gstack · error · Error

CDPSessionInvalidated: ${e.message} Cause: Playwright contex

Error message

CDPSessionInvalidated: ${e.message}
Cause: Playwright context was recreated (e.g., viewport scale change) and the prior CDP session is stale.
Action: retry the command; the bridge will create a fresh session.

What it means

Error "CDPSessionInvalidated: ${e.message} Cause: Playwright context was recreated (e.g., viewport scale change) and the prior CDP session is stale. Action: retry the command; the bridge will create a fresh session." thrown in garrytan/gstack.

Source

Thrown at browse/src/cdp-bridge.ts:164

      : await input.bm.acquireTabLock(input.tabId, CDP_ACQUIRE_TIMEOUT_MS);
  const acquireMs = Date.now() - acquireStart;
  logTelemetry({ event: 'cdp_method_lock_acquire_ms', domain: input.domain, method: input.method, ms: acquireMs });
  logTelemetry({ event: 'cdp_method_called', domain: input.domain, method: input.method, allowed: true, scope: entry.scope });

  try {
    const page = input.bm.getPageForTab(input.tabId);
    if (!page) {
      throw new Error(
        `Cannot dispatch: tab ${input.tabId} not found.\n` +
          'Cause: tab was closed between command queue and dispatch.\n' +
          'Action: $B tabs to list current tabs.'
      );
    }
    let session;
    try {
      session = await getCdpSession(page);
    } catch (e: any) {
      throw new Error(
        `CDPSessionInvalidated: ${e.message}\n` +
          'Cause: Playwright context was recreated (e.g., viewport scale change) and the prior CDP session is stale.\n' +
          'Action: retry the command; the bridge will create a fresh session.'
      );
    }
    // Race the call against a hard timeout.
    const callPromise = session.send(qualified, input.params);
    const timeoutPromise = new Promise((_, reject) =>
      setTimeout(() => reject(new Error(`CDPBridgeTimeout: ${qualified} did not return within ${CDP_TIMEOUT_MS}ms`)), CDP_TIMEOUT_MS),
    );
    const raw = await Promise.race([callPromise, timeoutPromise]);
    return { raw, entry };
  } finally {
    release();
  }
}

View on GitHub (pinned to 94993f7401)

When it happens

Trigger: Thrown at browse/src/cdp-bridge.ts:164 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of garrytan/gstack@94993f7401 (2026-08-12). Data as JSON: /api/errors/7ec5de0ff684bb4e. Report an issue: GitHub.