Background occasionally repositions while scrolling

[justchen1369]

[Conor12345]

Is this to do with the issue raised by @xthexder when he clicks hyperlinks or is it a different issue?
Could we also get some more documentation for it please.

[justchen1369]

#290 (comment)

[DrMagPie]

Failing to reproduce.
most likely was fixed by spider optimisations.

[Conor12345]

Also failing to reproduce this one - maybe @justchen1369 can take a look and see if it's still an issue and give some steps to reproduce.