Run a persistent web worker in the background without getting throttled

I would like to run a web worker in the background (on mobile, it works on desktop) which does an action every minute by sending an HTTP request. Unfortunately, after having the website in the background for about 5 minutes, no HTTP request will be sent anymore... All network requests will resume once you go back to the website.

It seems like the web worker is not allowed to be run in the background, at least not on mobile, as it works fine on desktop. I could not find any source stating why it is throttled, and what can be done about it. I found a similar issue dating from 2017, which is 4 years ago and has not been answered quite the way I want it and might also be outdated.

I thought of the following solutions:

• Normally in native Android you can show a notification which will ensure that your app keeps running in the background, I was wondering if this would also work on web in combination with web workers.
• If you open a web socket in your web worker, will it keep your web worker alive in the background?
• Progressive web app. Does not seem to keep it active unfortunately..

Is there anything I could do about this?

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