Android Wall Tablet - Unwanted Refresh After long time of Screen Off

Hello Gents,

I have a small issue with my wall tablet Android 11, running the Fully Kiosk Browser with Home Assistant.

Everything works perfectly except for a small thing that occurs after a long sleep of the screen, noting that I disabled the Automatically close connection as per the below.

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But the screen does a quick refresh of the page before landing properly on the loaded page.

I tried all the options without knowing the exact cause of this behavior. Even the HA Companion app without Fully Kiosk had the same result.

Let me note that if I wake up the screen after a small amount of time (within 5 mins) it will wake up perfectly without screen refresh and this is what I need to be all the time.

What is the best way to keep the connection up even while the screen is Off?

Thanks in advance for your support.