Feature detect WebSockets in older clients

[josh]

It'd be nice to be able to load this script in older clients that don't support WebSockets like IE9.

I think it makes sense to just leave ReconnectingWebSocket undefined so you can feature check it in the same way.

So if you're code was

if ('WebSocket' in window) {
  var ws = new WebSocket('ws://....');
}

You can just change that to

if ('ReconnectingWebSocket' in window) {
  var ws = new ReconnectingWebSocket('ws://....');
}

/cc @joewalnes @mislav

[mislav]

👍

[joewalnes]

Agree. Merged. Thanks.

[josh]

@joewalnes thanks!