Does facebook use comet or lengthy polling to get new stream and messages?

Question

I would like to know if there are any code links that I can execute to write a very simple example. Many posts or websites just talk about technology.

Answer 1

Yes, "this is a variant of Comet , especially the XHR long survey and / or BOSH ."

reference site:

https://www.facebook.com/note.php?note_id=14218138919