Support source maps

[Daniel15]

Files transformed to JSX on-the-fly should also output the associated source map

• Does JSX transformation even support source maps at the moment?
• May need to cache on disk in addition to in-memory? See if ASP.NET output caching with file dependency is sufficient.

[jordwalke]

Yes, the JSX transform supports sourcemaps. If you try https://github.com/facebook/react-page it will show them working.

[Daniel15]

Basic support for when .jsx files are referenced directly was merged in 2894222. It's not supported for combined/minified files at the moment since none of the .NET minifiers support source maps. I've heard talk of the next version of Visual Studio supporting Gulp so perhaps we'll move in that direction (ReactJS.NET + Gulp rather than ReactJS.NET + [Cassette | ASP.NET Minification])

[zzz6519003]

does the react project itself support sourcemap? that way i can read source code more easily by debugging the program XD

[Daniel15]

Yeah, source maps should be supported. ReactJS.NET supports source maps, as does React itself. Other third party libraries like Webpack, Gulp and Babel support source maps too.