Does it make sense to support long polling for those situations where websockets are not available?

Question

JavaScript

Websockets support already covers 88% of browsers, does it make sense to bother with long polling support for those situations where websockets are not available?
As far as I know, websockets may not work not only in older browsers, but also in cases where there are proxy servers between the client and the server that do not support websockets.

Will using https help to bypass the problem with proxy servers that for one reason or another do not support websockets?

Answer 1

Do you know that Socket.IO will try several connection methods available in this environment? "bother", in this case, is too strong a word, IMHO :)