web application doesn't load correctly with Cypress

My team is working on a web application and we decided to use Cypress for automated tests. Problem is, when we run these tests, they only get past login screen. Home screen doesn’t load correctly. This happens ONLY in Chrome driven by Cypress and Electron driven by Cypress. In normal Chrome the application runs without errors.

Current behavior:

When running Cypress tests, web application doesn’t load correctly and console displays these errors on home screen:

Uncaught SyntaxError: Invalid or unexpected token
Uncaught Error: Cannot find module 'jquery'
Uncaught Error: Cannot find module 'angular-cookies'

Desired behavior:

Behaviour should be the same in standalone Chrome and Chrome driven by Cypress (and Electron).

Versions

Windows 10 Cypress 3.2.0, Chrome 74, Electron 59

If somebody knows what’s happening and how can it be fixed, please let me know. Thank you

[pinko2512]

We fixed the issue. The problem was that when we opened first Uncaught SyntaxError - Invalid token, we found this:

The same file run on the standalone Chrome was loaded correctly, so it had to be issue with Cypress encoding. After some googling we found that Cypress settings has a default settings with this property: "modifyObstructiveCode": true

https://on.cypress.io/configuration#modifyObstructiveCode

After setting it to false it works well.

[paopao1983]

Hello Jennifer. I’m new in cypress and I’m getting this error too, but I don’t identify how can localice the “wrong” code. The Dev team made some changes last week and I started to get this error today that I have updated project, and I don’t know how to tell them what search for and adjust. If I add (“modifyObstructiveCode”: false) to the config, my script runs but i don’t know if this can affect other scripts.