Just a quickie for something I discovered today.
While I knew this feature existed, I'd never managed to get it to work until now.
The trick is to make sure that Edge has the right filing system folders to let it match your served files with your source files.
In my case, working with pages served from Node-RED via uibuilder but also wanting to be able to edit uibuilder's new master CSS file, I had to give Edge not only my userDir node-red folder but also the uibRoot folder and my uibuilder package folder.
After that, it was simply a case of closing and reopening the browser window and opening the developer tools.
This makes messing with CSS in particular sooooo much faster.
Sadly, it can't seem to work out that the default html page
index.html maps to the source shown as
(index) in the dev tools but if you manually include
This might also be useful to anyone trying to play with things in the node-red editor as well