Speculation rules prerender not working

Samsung Internet
1

It seems that prerender via speculation rules fails in all cases in latest SamsungBrowser (and all older versions as well).

Despite SamsungBrowser supporting speculation rules, our RUM shows that no success prerender has been executed by any SamsungBrowser despite the feature working in Chrome and Edge.

Debugging it locally (remote debugging) to check what error prevented the prerender, just shows an empty page in dev tools (see video too large to upload).

The tested sites use list rules like this.

{
   "prerender":[
      {
         "source":"list",
         "urls":[
            "https://www.bmw.co.uk/en/all-models/bmw-i/iX1/2022/bmw-ix1-highlights.html"
         ],
         "eagerness":"immediate"
      }
   ]
}
2

Hello,
Please create a support request in Dev Support | Samsung Developer channel.