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From this article's current version:

"Socket.IO [...] can fallback on multiple other methods, such as Adobe Flash sockets, JSONP polling, and AJAX long polling [...]."

What is JSONP polling, with respect to AJAX long polling? --Abdull (talk) 14:24, 6 August 2013 (UTC)[reply]

As I understand it, JSONP polling inserts <script> tags to load JSONP responses, while AJAX polling creates XMLHttpRequests to load JSON responses. The JSONP option is useful for when XRHs are impossible, possibly due to browser support, possibly due to CORS concerns. See https://github.com/socketio/engine.io-protocol ~ LukeShu (talk) 04:03, 13 March 2018 (UTC)[reply]

The introduction says one thing, the Disadvantages sections says another. There are various Socket.IO client libraries for other languages, so I guess Socket.IO is both the "reference" JavaScript implementation and the "custom realtime that this library implements on top of other realtime protocols." -- SPage (WMF) (talk) 05:08, 7 March 2015 (UTC)[reply]

I tagged this article because it reads like an advertisement and almost exclusively cites the framework's own documentation as references. I'll come back and work on it when I have more time. Pianoman320 (talk) 06:30, 29 January 2016 (UTC)[reply]

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Thank you. The Transhumanist 01:14, 12 April 2017 (UTC)[reply]