Can not debug when using jsx loader #18

Hi @ConradSollitt,

First of all thank you so much for building this awesome 20k library (babel standalone 2m) so developing react app without built tools is a breeze, highly appreciated!!!

I noticed a difference that the react jsx(or js) file was not shown in chrome dev tools when using jsx loader instead of babel, so debugging is not possible. See attached screenshots.

This is the test project to reproduce this issue. Clone the project, run npm install, and test the two links in chrome:

• JSX loader: http://localhost:3000/index.html
• Babel standalone: http://localhost:3000/index-babel.html

Thanks again for your great work, look forward to your response. :-)

Best,
Yang