Load sourcemap dynamically

[pjebs]

See this issue and the associated images.

I want to run this command: StackTrace.getSync().

I would like the fileName field to reveal the filename from during Development.

stacktrace.js should provide some way to load the source map and then when StackTrace.getSync() is called, replace the fileName with the original fileName.

[pjebs]

There does not seem to be any synchronous way of adding sourcemaps.