Debug javascript loaded dynamically in content script

When using browserify to load my javascript dependencies in a content script, i cannot find the loaded files in the debugger.

However, in a panel, if I load the javascript directly from a <script> tag in the Panel.contentURL html page, I can see and debug my files.

(I am using the --debug arg when generating my bundle)

Is there any way to see the depencencies files when I load my bundle.js generated by browserify directly as content script ? Is there any workaround ?

Thanks