How do I disable all Source Mapping in Safari DevTools?
As far as I know, there is no 'disable source map' option in safari.

I'm also not interested in these red lines in my console log. And tackled the problem from the other end, by letting the server give empty 200 responses for .map files

For nginx it's done by adding the next line to your config

location ~ \.map$ {return 200;} 


I know this is dirty, but hey it works...