Chrome App - Performance lags while not in foreground.

[William Fligor]

I have a chrome app which is used to get data from the chrome serial API, and repeat it over a websocket server based on the chrome example websocket server. Recently, after a chrome update mid april, the app stopped performing while not in the foreground. 

When the app is not in the foreground the communication slows to a crawl and impacts my apps performance. This has been replicated on multiple OSX machines - other platforms I have not tested. 

The part of the app doing the communication is not in a background js file. Would moving it there fix this problem?

Thanks - William Fligor

[William Fligor]

The serial data request to websockets happens about every 50ms in the foreground, and every second when the app is not in the foreground. Prior to a recent update there was no difference. 

[Reilly Grant]

Can you file a bug on crbug.com with your OS and Chrome version details?

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