Experimental: handle render errors

[gaearon]

It's pretty frustrating to have a render error blow up your app.
Here's an experiment in handling them.

May be worth doing for other lifecycle hooks to prevent hot updates blowing up the app.
Feedback welcome.

Open questions:

• How to make this work in React Native
• How configurable it needs to be
• Whether other lifecycle hooks need similar protection

[hzoo]

Maybe configurable colors 😝

[ghost]

This has been on my todo list for a while, but finally got around to it. Pulled an all-nighter and put together a working prototype for handling errors, compatible with react-hot-api. See babel-plugin-react-error-catcher. After I get some sleep I'll probably make sure everything works with webpack (it should, in theory), as I've only had a chance to test it with jspm/systemjs so far. Saw that @KeywordBrain linked to this PR on redbox-react and figured I'd chime in. :)

[davidpfahler]

For reference: #23

[gaearon]

I'll soon get back to error handling.
I definitely won't do it in React Hot API though: we're deprecating it.