Hi there,

I noticed a big performance degradation on the devtools when I have to debug the javascript of my application. After investigating a bit (using the Browser Devtools), it appears that the main point of that slowness comes from the fact there are lots of scripts that are fetched, and the getSourceByUrl is called several times. And indeed, my application in development mode runs lots of JS files.

You may reproduce the issue with the following steps:

1. Open the attached index.html.zip and unzip it
2. Open the devtools, switch to the Debugger tab
   → it takes a long time (~30sec) to display those simple (but numerous) scripts

Don't hesitate to ask me questions.

Cheers,
Florent