I am trying to figure out how to display the LESS file and line number pre compilation in developer tools so that I can see where I need to be editing. I have previously got this up and running with SASS on M1 but can't figure it out with M2.
I have tried both enabling Source Maps in Chrome dev tools and installed fireLESS in Firefox however I always get the compiled file output not the original LESS file.
I can see in dev/tools/grunt/configs/less.js that Sourcemaps are enabled:
dumpLineNumbers: true, // use 'comments' instead false to output line comments for source
However this is making no difference.