http-proxy provides a [proxyTimeout option](https://github.com/nodejitsu/node-http-proxy/blob/master/lib/http-proxy/passes/web-incoming.js#L122) that allows us to set a timeout on the outgoing socket connection to the target. This timeout is very effective when the upstream target does not respond within an expected time.

I had wasted a few hours searching for this option. Documenting this option can save others a significant amount of time.

Browserify fails to resolve the "./http-proxy/" as "./http-proxy/index.js" but as "./http-proxy.js" (so nothing works)
Beeing explicit here does not cost much for http-proxy, yet it's intrinsically complicated for browserify to fix (as trailing slash might be used as a pollyfill shim for native/non-natives addons i.e.  require('url/') vs require('url') )