Distributed code should not contain webpack specific logic

[nphyatt]

There is a require statement in the client https://github.com/rethinkdb/horizon/blob/next/client/src/util/fetch.js#L6 which is webpack specific and therefore when I attempt to build using typescript I come up against the following error:

Error: Cannot find module 'imports?this=>global!exports?global.fetch!isomorphic-fetch' from '/Users/home/demo/node_modules/@horizon/client/lib/util'

[imhoffd]

Anyone using horizon's main entry in package.json (lib/index.js) and building their own bundle is essentially forced to use webpack with this line.

[deontologician]

Hey guys, we're going to fix this as soon as possible. We are a little backed up at the moment, so bear with us.

[flipace]

I'm going to work on this today so it should be fixed with the next release. Sorry for the troubles :(

[flipace]

here's the pr: #593