A user on my community brought this to my attention.  I think this may be intended behavior by Google chrome, but should be something reviewed for an overlay by IPS 

WebP images open in a new tab, and are not scrollable like JPG

Sample topic: 

 

Thank you for bringing this issue to our attention! I can confirm this should be further reviewed and I have logged an internal bug report for our development team to investigate and address as necessary, in a future maintenance release.