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A comment on Push API – W3C Working Draft.

Re:Push API – W3C Working Draft by Animats on Monday October 27, 2014 @03:19AM (#8514285)
The client has to have a TCP connection open to the server for this to work, right? Otherwise you run into all the problems of trying to reach machines behind DHCP, firewalls, etc.
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Re:Push API – W3C Working Draft by swartkrans on Monday October 27, 2014 @03:56AM (#8514354)
That detail is implementation dependent. The site that wants to push to your browser hits up a third party push service provider that the user uses to get push notifications. That will probably Apple for iOS and Safari, Google for Chrome and Android, and I'm guessing Mozilla might provide one, as well as a host of other smaller companies that might be interested.
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Re:Push API – W3C Working Draft by zachlatta on Monday October 27, 2014 @03:54AM (#8514349)
Yup, so there will be push servers that clients can connect to, so clients don't have to maintain a ton of open connections, similar to APNs and GCM for iOS and Android, respectively.
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