ASP.NET Core 2.2 - Mobile Browsers Not Closing Web Socket












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I have a server deployed that is using Web Sockets for real time communications with clients. I'm finding that if a client is using Safari on an iOS device and the app goes into a background state or if they sleep the screen it will break the Web Socket connection (stopping any comms after going back to Safari), but on the server side it is not invoking the OnDisconnected event.



I only found this because I was tracking how many connected users I have and it just continually rises.



Chrome, Firefox, and Edge all work as expected on a desktop PC and they invoke the OnDisconnected event.



I was wondering if anyone has seen this before, if I'm missing a setting, or if there is a work around? So far, in my method that sends data to clients, I check all cached sockets to see if they are not in the "Open" state, and manually force them closed.










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  • [2019-01-27 05:32:38] Connection id "0HLK44LQK6LG8", Request id "0HLK44LQK6LG8:0000002F": An unhandled exception was thrown by the application. This is occuring every time a mobile browser goes to a sleep state. I don't know how to track where it's coming from, and the server doesn't seem to be crashing just logging this error.

    – Bagoette
    Jan 28 at 0:15


















0















I have a server deployed that is using Web Sockets for real time communications with clients. I'm finding that if a client is using Safari on an iOS device and the app goes into a background state or if they sleep the screen it will break the Web Socket connection (stopping any comms after going back to Safari), but on the server side it is not invoking the OnDisconnected event.



I only found this because I was tracking how many connected users I have and it just continually rises.



Chrome, Firefox, and Edge all work as expected on a desktop PC and they invoke the OnDisconnected event.



I was wondering if anyone has seen this before, if I'm missing a setting, or if there is a work around? So far, in my method that sends data to clients, I check all cached sockets to see if they are not in the "Open" state, and manually force them closed.










share|improve this question























  • [2019-01-27 05:32:38] Connection id "0HLK44LQK6LG8", Request id "0HLK44LQK6LG8:0000002F": An unhandled exception was thrown by the application. This is occuring every time a mobile browser goes to a sleep state. I don't know how to track where it's coming from, and the server doesn't seem to be crashing just logging this error.

    – Bagoette
    Jan 28 at 0:15
















0












0








0








I have a server deployed that is using Web Sockets for real time communications with clients. I'm finding that if a client is using Safari on an iOS device and the app goes into a background state or if they sleep the screen it will break the Web Socket connection (stopping any comms after going back to Safari), but on the server side it is not invoking the OnDisconnected event.



I only found this because I was tracking how many connected users I have and it just continually rises.



Chrome, Firefox, and Edge all work as expected on a desktop PC and they invoke the OnDisconnected event.



I was wondering if anyone has seen this before, if I'm missing a setting, or if there is a work around? So far, in my method that sends data to clients, I check all cached sockets to see if they are not in the "Open" state, and manually force them closed.










share|improve this question














I have a server deployed that is using Web Sockets for real time communications with clients. I'm finding that if a client is using Safari on an iOS device and the app goes into a background state or if they sleep the screen it will break the Web Socket connection (stopping any comms after going back to Safari), but on the server side it is not invoking the OnDisconnected event.



I only found this because I was tracking how many connected users I have and it just continually rises.



Chrome, Firefox, and Edge all work as expected on a desktop PC and they invoke the OnDisconnected event.



I was wondering if anyone has seen this before, if I'm missing a setting, or if there is a work around? So far, in my method that sends data to clients, I check all cached sockets to see if they are not in the "Open" state, and manually force them closed.







ios c# asp.net websocket






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asked Jan 25 at 21:31









BagoetteBagoette

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11













  • [2019-01-27 05:32:38] Connection id "0HLK44LQK6LG8", Request id "0HLK44LQK6LG8:0000002F": An unhandled exception was thrown by the application. This is occuring every time a mobile browser goes to a sleep state. I don't know how to track where it's coming from, and the server doesn't seem to be crashing just logging this error.

    – Bagoette
    Jan 28 at 0:15





















  • [2019-01-27 05:32:38] Connection id "0HLK44LQK6LG8", Request id "0HLK44LQK6LG8:0000002F": An unhandled exception was thrown by the application. This is occuring every time a mobile browser goes to a sleep state. I don't know how to track where it's coming from, and the server doesn't seem to be crashing just logging this error.

    – Bagoette
    Jan 28 at 0:15



















[2019-01-27 05:32:38] Connection id "0HLK44LQK6LG8", Request id "0HLK44LQK6LG8:0000002F": An unhandled exception was thrown by the application. This is occuring every time a mobile browser goes to a sleep state. I don't know how to track where it's coming from, and the server doesn't seem to be crashing just logging this error.

– Bagoette
Jan 28 at 0:15







[2019-01-27 05:32:38] Connection id "0HLK44LQK6LG8", Request id "0HLK44LQK6LG8:0000002F": An unhandled exception was thrown by the application. This is occuring every time a mobile browser goes to a sleep state. I don't know how to track where it's coming from, and the server doesn't seem to be crashing just logging this error.

– Bagoette
Jan 28 at 0:15












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