I am trying to debug through some JS code in firefox. When I click on a certain file (CometdWorkerJs.js) in console, that file does not open in Debugger-Sources tab, but rather opens as raw text file. Other files open normally in Debugger-Sources tab. Due to this, I'm unable to debug through this file CometdWorkerJs.js. I've also observed the same behaviour in other browsers like Chrome.
Why does this happen? Is there a way to debug through this file ?
Screen recording of my browser's inspect window -
