fix: WebSocket Connection Closed crashing from BrowserCriClient #30174
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ryanthemanuel
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Co-authored-by: Bill Glesias <bglesias@gmail.com>
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…ess-io#30174) * catch Fetch.enable errors on extra target in browser CRI * changelog * changelog * changelog * Update packages/server/test/unit/browsers/browser-cri-client_spec.ts Co-authored-by: Bill Glesias <bglesias@gmail.com> * use try/catch instead of .catch for wider unit test support --------- Co-authored-by: Bill Glesias <bglesias@gmail.com>
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BrowserCriClientdestroys an extra target while that target is being initialized, the App crashes #30100Additional details
When the BrowserCRIClient attaches to a target, it determines if the new target is an "extra target" or not. As a part of this process, it creates a raw CDPClient instance and sends a
Fetch.enablecommand. If this extra target is closed before that command can resolve, CDPClient will throw aWebSocket Connection Closederror. If this error is uncaught, it will crash Cypress.To fix this, the command is wrapped in try/catch, and logs a debug entry for the error if an error is encountered.
This could have been fixed by using the more resilient
CRIClientclass, butBrowserCRIClientis fairly complex, and this approach has a smaller change footprint.BrowserCRIClientis a candidate for similar refactors that were made toCRIClient, recently.Steps to test
As this error is very difficult to reproduce intentionally, the only test available is a unit test.
How has the user experience changed?
PR Tasks
cypress-documentation?type definitions?