How to debug Error: Session Closed.

[varna]

Hi,

Sometimes my tests fail with: Error: Protocol error (Runtime.callFunctionOn): Session closed. Most likely the page has been closed.

     Protocol error (Runtime.callFunctionOn): Session closed. Most likely the page has been closed.
      at CDPSession.send (node_modules/puppeteer/lib/Connection.js:180:29)
      at ExecutionContext._evaluateInternal (node_modules/puppeteer/lib/ExecutionContext.js:107:44)
      at ExecutionContext.evaluate (node_modules/puppeteer/lib/ExecutionContext.js:48:23)

If I run yarn test:e2e --steps --https --port=3000 --reporter mocha-multi --serve --verbose --full-memory-crash-report on a local machine, it feels like random crashes. My project is quite fat, but I have never seen it crash like that in dev or prod env. CI pipeline is quite flaky and each test has like 5% chance to fail with a such crash.

How do I debug these crashes?