host-provided navigator.getVRDIsplays returns an empty list. how does one force the polyfill to populate the list?

[iambumblehead]

Descriptin:

I'm using Firefox and Chrome on mac ad found the polyfill script no longer wrks in my video player. Its seems relad to the issue described here https://github.com/immersi-web/webvr-polyfill/issues/299 and navigator.tVRDisplays is defined in the host environnt but returns an empty list. The suggestin at the linked-issue is to use ALWAYS_APPEND_POLYFLL_DISPLAY, however, I did not find any match for this in the polyfill sources and dd not find any similar-looking configuration in the polyfill sources.

Is there a wy to force this script to do its thing?