testcafe-hammerhead: TypeError: Cannot read property 'className' of undefined

What is your Test Scenario?

Hello!

I’m having a hard time to click on some old Angular JS components (buttons) when using most recent versions of TestCafe. Here is an example of a button that TestCafe cannot click:

<button class="uiid-onboard-employee-button btn btn-primary mg_r20 wd_160" promise-button="vm.saveAddEmployee()" > {{vm.saveButtonText}} </button>

I can only click on the button above when using TestCafe version 1.1.0, I’ve tried several versions after this (including latest 1.3.3) but when TestCafe clicks on the button, nothing happens and the following error is thrown in my Chrome Console:

I noticed that all buttons that I have issues have this promise-button attribute.

What is the Current behavior?

Only TestCafe 1.1.0 can click on the buttons above.

What is the Expected behavior?

I’d expect latest versions of TestCafe to be able to click successfully.

What is your web application and your TestCafe test code?

Your website URL (or attach your complete example):

Steps to Reproduce:

1. Go to my website …
2. Execute this command…
3. See the error…

Your Environment details:

• testcafe version:
• node.js version:
• command-line arguments:
• browser name and version:
• platform and version:
• other: