Safari background page origin header

Hi, I'm working on a Safari web extension and seeing some issues due to the background page GUID changing every time the browser is launched.

From some other posts I see that the GUID for the background page is refreshed to avoid fingerprinting.

Is there is an option / configuration to disable the refresh or provide a fixed GUID?We'd like to allow requests only from specific origins apart from relying on CORS which requires having a fixed background page origin.

Safari background page origin header
 
 
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