ESRI : Failed to parse source map

Question

I am getting this error in the Google chrome developer console.

Failed to parse SourceMap: http://localhost:15132/Scripts/_External/igniteui/css/the

Answer 1

Further to just simply turning off Source Maps in Chrome - I've done a little digging and found that using Web Essentials to create the source maps seems to be the issue.

For whatever reason, if I use an external compiler (Koala) I can successfully create working source maps in Chrome (no errors). Whereas if I use Web Essentials, the source maps fail to parse.

Hope this helps someone.