Web Page Loads then Turns White

[hubappetit]

Happens here: https://github.com/corbindavenport?tab=achievements
Also happens here on this very page: https://github.com/vyv03354/linkstatuswe/issues/new
Nowhere else I've noticed yet.

[vyv03354]

I could not reproduce the problem.
Maybe background: transparent fails to apply for some reason.