document / provide recipe on how to use ember-cli proxies for local development about cli-guides

[jenweber]

Hi, thanks for writing this up! What's your opinion on where it belongs?

I think --proxy overall isn't described sufficiently and I want to add it in. I also remember being confused by it.

Certainly! I think a topic in advanced use walking through of how to use generated proxies would suffice. An entire page on proxying would seems warranted.

[maxwondercorn]

There is a bit on the -proxy flag at the end of developer tools section. That should be merged into the new content

[mehulkar]

Bit confused about what the proxy does. Is the only use case to be able to fetch('/data.json') in the app, and having that hit 127.0.0.0:4000/data.json?

In that case, why not just fetch(${config.host}/data.json) and set the config in config/environment.js?