If you read up on this it's a simple UA block. IE10 and up support sockets. https://github.com/mozilla/togetherjs/blob/develop/togetherjs/startup.js https://gi

If you read up on this it's a simple UA block. IE10 and up support sockets. https://github.com/mozilla/togetherjs/blob/develop/togetherjs/startup.js https://github.com/mozilla/togetherjs/blob/develop/togetherj... https://twitter.com/jdalton/status/390538182116143105 https://twitter.com/jdalton/status/390538182116143105