Hosting the source maps behind a corp network is good.
bootstrap.js.map is a source map for a third party lib. Which means that the code does not change as soon as long as you use the same version. Have you also used source maps for your own code — source maps that are generated on each build?
If yes, how did the build process look like?
I am curious because in my opinion there must be some sort of copying of the source maps from your
dist folder to the directory that is only accessible in the corp network. But maybe there are other solutions.