Debug cache-busted scripts in production

You can use a URL-rewrite Chrome plugin like Requestly (not free) or Redirector (free) and add redirect rule for your scripts.

Requestly for example lets you specify rules like:

I'm OFC assuming that if you strip the ?bust=xxxx part from the URL the server will still serve the correct script file. I tested it and it works like a charm in my local test environment - the breakpoints remain.

Hope it helps.

You can use debugger; within your code. If the developer console is open, execution will break. It works in firebug as well.