title: Browser websocket fallback and support
body: <p>Simple question:
  I saw on the site of socket.io several fallbacks for websockets (<a href="http://socket.io/#browser-support" rel="nofollow">http://socket.io/#browser-support</a>)</p>
  
  <p>But I can not find (even after a long google session) which browsers use which fallback.
  The reason I'm asking is that I want to avoid a long polling fallback so I need to know which browsers and versions would use that.</p>
  
  <p><strong>[EDIT ]Seeing as this got downvoted I need to carify myself:</strong></p>
  
  <p>I need to know which browsers/versions eventually fall back to long polling. I can not simple assume the use of long polling in my case because long polling would present problems. Hope this makes it more clear and why I could not find it as easily..</p>
  
  <p><strong>[EDIT 2] Sorry for being so unclear:</strong></p>
  
  <p>I kinda see now that I basically asked which browsers use a fallback. But that's not what I meant to ask as I already know this. I meant to ask how to detect or know which fallback will be used. For my application flash is no problem, but long polling could present problems. Thanks!</p>