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Vaadin Forum3. Vaadin 6, 7, 8

Why isn't WEBSOCKET_XHR the default?

Peter Hansson
7 years ago Feb 25, 2016 4:20pm

Concerning the @Push annotation.

I'm just wondering why WEBSOCKET_XHR isn't the default with the @Push annotation ? If I understood correctly then if the setting is the default of WEBSOCKET then there's will be no ServletRequest. I can't really comprehend the implication of that but it sounds severe to me.

I'm doing container-based authentication so I believe I would need transport=WEBSOCKET_XHR and then I came to think why you wouldn't want transport=WEBSOCKET_XHR rather than transport=WEBSOCKET in almost all cases ?

David Wall
3 years ago Apr 17, 2019 10:16pm

How does WEBSOCKET differ from WEBSOCKET_XHR for push transport? Is one better than the other? Is one more reliable for clients that may be behind firewalls/proxies?