Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

CoffeeScript 2 support

See original GitHub issue

Operating System: Ubuntu 17.04
Cypress Version: 0.20.1
Browser Version: Chrome 62, Chromium 60, Electron 53

Is this a Feature or Bug?

Feature

Current behavior:

Cypress does not support CoffeeScript 2 syntax (especially the await keyword), that was released a few days ago.

To fix this in Cypress server I replaced CS1 with CS2 (see below how to reproduce). Then everything was working fine with my CS2 tests, but only using the Cypress app (via cypress open). Via cypress run I got weird errors with electron, chrome and chromium browsers (see stack trace below ).

Desired behavior:

CoffeeScript 2 tests working “out of the box” after a fresh Cypress install, with cypress open as well as cypress run.

How to reproduce:

In Cypress server I replaced CS1 with CS2 like so:

cd node_modules/cypress/dist/Cypress/resources/app/packages/server/
npm i coffeescript@next
cd node_modules
mv coffee-script/ coffee-script_V1
ln -s coffeescript/ coffee-script

Additional Info (images, stack traces, etc)

Using cypress run with CoffeeScript 2, I get the following error:

npx cypress run --browser electron --config baseUrl=http://localhost:5000

Started video recording: /home/laurent/myproject/cypress/videos/k38ej.mp4

  (Tests Starting)


  1) An uncaught error was detected outside of a test

  0 passing (236ms)
  1 failing

  1)  An uncaught error was detected outside of a test:
     Uncaught SyntaxError: missing ) after argument list

Cypress could not associate this error to any specific test.

We dynamically generated a new test to display this failure.