Reloading Cypress after unexpected error results in crash

[JonahKK]

Current behavior

When Cypress Runner (launched with cypress open) encounters an error it allows for reloading (Try Again option).

When the Try Again button is clicked then the Cypress crashes and following errors are displayed:

Desired behavior

Reload should not end with crash.

Test code to reproduce

The easiest way to reproduce is:

1. Open Cypress with cypress open.
2. Change cypress.json that is no longer valid.
3. Unexpected error screen should be displayed.

Versions

6.5.0

[jennifer-shehane]

Yeah, this is easily reproducible. This was introduced in 6.5.0.

cypress.json

{,}

1. Run cypress open
2. Tap 'Try again' in GUI.

Looks like this error is constructed and thrown by us ourselves. https://github.com/cypress-io/cypress/blob/develop/packages/server/lib/util/class-helpers.ts#L14:L14

This error was introduced in #14479

[jennifer-shehane]

In 8.2.0, this no longer crashes but causes the UI to spin forever.

[jennifer-shehane]

This is no longer an issue. Tried in Cypress 8.6.0.