Cypress crashes/hangs if a test throws a long error

[tnrich]

Current behavior

This test causes the cypress open chrome test runner to crash:

it("works", () => {
    cy.visit("https://example.cypress.io");
    const longString = "a".repeat(1000000);
    throw new Error(longString);
  });

Note, making the longString a bit shorter causes the test to pass again.

Desired behavior

Throwing a long error should not crash the cypress runner. Zooooiiiink! (Should support whatever JS' limits are which are fairly astronomical ~1GB)

Test code to reproduce

https://github.com/tnrich/cypress-test-tiny

Cypress Version

13.16.0

Node version

18.17.1

Operating System

mac os

Debug Logs

No response

Other

No response

[tnrich]

Also note that this occurs running in headless mode (the screenshot is from ~5 mins into the test run):

This could definitely be behind some of our mysterious CI crashes where there is little to no info to debug with.

Not really my place to say but IMHO it seems like this should be a high priority issue because I imagine it would be a fairly straightforward fix on cypress' side AND prevent a ton of difficult to debug test failures.

[jennifer-shehane]

I was able to reproduce this hanging.