I just tried adding the Katalon extension to Chrome 84, and it loads my test case.
However I cannot fully use the browser now. I logged into my site and after accepting the password it just sat there with the spinner running.
The dev console starts with:
DevTools failed to load SourceMap: Could not load content for chrome-extension://ljdobmomdgdljniojadhoplhkpialdid/common/browser-polyfill.js.map: HTTP error: status code 404, net::ERR_UNKNOWN_URL_SCHEME
Since this is the only extension, I have to assume that is that referenced string above.
But in the 3rd error listed Chrome also gives a URL for the website I’m trying to test having the same error with backbone-min.map / 404.
The bottom of the errors has:
“in Startnull main.js:42”
referencing chrome-extension://ljdobmomdgdljniojadhoplhkpialdid/katalon/main.js