Can't enter VR

I use quest2 to browse the web, then enter VR by typing in a command, then click the button to enter VR. Everything is pitch black. I remember that I could enter VR smoothly in version V0.9. Please check if there is something wrong.

Reproduce the failure with a Quest 2 by browsing to the site, entering VR through the reported command, and clicking the VR button. Compare the behavior with version V0.9 and trace the JavaScript VR entry path; done means the same flow displays the molecular viewer instead of a black screen.

Written by the indexing model from the issue text.