What's the difference between MtGox streaming API hosts?
Origin null is now allowed.


Your Origin header is not being set.

Try running your code in the browser from an actual domain name other than something like about:blank.

In chrome running:

var ws = new WebSocket('ws://websocket.mtgox.com/mtgox');
ws.onmessage = function(e){ console.log(e); };


results in failure from about:blank. However from an actual domain name results in success.