WebStorm debugging in Chrome

Question

I am not able to debug my Karma unit tests in WebStorm. How can I fix it?

I see this message when I click the debug button:

I checked How do I know what's wrong . chrome://extensions shows:

Clicking 'background page' shows:

Answer 1

This SO question showed answers which helped me realize the solution.

The problem was that the JetBrains plugin was trying to debug on port 63343 (not sure why). I noticed Webstorm was serving on port 63342.

To fix the port mismatch, I opened the chrome://extensions tab, found JetBrains IDE plugin, clicked "Options". This opened a new tab where I could adjust the port that the JetBrains IDE plugin was using. I set the port to be the same value that Webstorm was using, then I clicked Apply.