Random ChunkLoadError in E2E tests

[papatelst]

Current behavior

We are getting following random error on Teamcity Docker cypress base image based E2E test runs. Initially it was mostly during after each hook execution, however now we are seeing it even outside of after each hook. It happens randomly in random specs. We have been seeing this error since upgrade to cypress version 13.5.1

The following error originated from your application code, not from Cypress. It was caused by an unhandled promise rejection.
              
 Loading chunk 59 failed.
(timeout: https://env.companyname.com/scripts/build/desktop/59.9dcc63fc.bundle.js)

When Cypress detects uncaught errors originating from your application it will automatically fail the current test.
              
This behavior is configurable, and you can choose to turn this off by listening to the `uncaught:exception` event.
              
https://on.cypress.io/uncaught-exception-from-application
              
Because this error occurred during a `after each` hook we are skipping all of the remaining tests.

Another example of chunkloaderror happening outside of aftereach hook

I was told to open a separate issue for End-to-End testing as mentioned in existing bug here.

Desired behavior

NO random chunkload errors.

Test code to reproduce

Not related to specific test or code.

Cypress Version

13.5.1

Node version

20.9.0

Operating System

linux

Debug Logs

No response

Other

No response

[jennifer-shehane]

@papatelst Are you able to provide a project that reproduces this behavior? We haven't seen this with e2e tests before

[papatelst]

@jennifer-shehane It happens in our cypress framework with random tests in random test runs. Hence cannot provide a concrete example for this.

[papatelst]

@jennifer-shehane noticed same error today, this time in Loading CSS chunk in *.bundle.css file as seen in snapshot below. The snapshot above in main bug description was for *.bundle.js file.

Can we suppress this error globally in our Cypress\Support\index.js file using following code:
Cypress.on("uncaught:exception", (err, runnable, promise) => { // we expect a random error like //"ChunkLoadError: The following error originated from your application code, not from Cypress. It was caused by an unhandled promise rejection." // and don't want to fail the test so we return false if (err.message.includes("ChunkLoadError") && promise) { return false; } });

[papatelst]

@AtofStryker Can you answer my question above about "Can we suppress this error globally" ?