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Test hangs in Firefox and js error appears on the page

See original GitHub issue

Are you requesting a feature or reporting a bug?

bug

What is the current behavior?

If I try to run the example in firefox (testcafe firefox tests). Firefox nightly is started and then the cli-tool just “hangs” (nothing is happening) and if I open the dev tools in firefox I see the following error:

TypeError: Not allowed to define a non-configurable property on the WindowProxy object testcafe-core.js:1:7989
TypeError: C.default is undefined[Learn More] testcafe-ui.js:1:16328
TypeError: s.default is undefined[Learn More] testcafe-automation.js:1:1668
TypeError: u.default is undefined[Learn More] testcafe-driver.js:1:25145
TypeError: ClientDriver is not a constructor[Learn More]

What is the expected behavior?

Test should be passed

Specify your

operating system: Mac OS X
testcafe version: 0.9.0

(Created from the comment by @tjoskar)

Issue Analytics

State:
Created 7 years ago
Comments:5 (2 by maintainers)

Top GitHub Comments

1reaction

helen-dikarevacommented, Feb 15, 2017

Now our basic example tests passe on all latest versions of Firefox:

Last oficial version
Beta
Developer Edition
Nightly

0reactions

lock[bot]commented, Mar 29, 2019

This thread has been automatically locked since it is closed and there has not been any recent activity. Please open a new issue for related bugs or feature requests. We recommend you ask TestCafe API, usage and configuration inquiries on StackOverflow.