On our production server, I have minified javascript published and I\'m not including a map file with it, because I don\'t want the user to be able to understand what\'s hap
If you had access to the source map file externally and could get the same file structure you could work it out I guess, but I'm not aware of any tools outside the browser that will help you with that.
The added advantage of having the data in a running browser will allow checking of locals which you won't get even with a source map.
You might want to consider a tool such as rollbar to do error reporting. This will report all the locals in each frame to help debugging. It has support for sourcemaps outside the browser to address your security concerns.