A absolute positioned iframe with top, right, left and bottom specified has no affect on the size of the iframe. See attached testcase. The red outlined iframe should be inset 10px around the page.
Created attachment 8926 [details] Testcase
This is not a regression, this happens in Safari 2.0 and TOT.
Firefox 3 beta 3 behaves like WebKit. I think the behavior is correct because an iframe has neither intrinsic dimensions nor an intrinsic ratio. Am I missing something?
Safari's behavior is correct according to the spec (see section 10.3.8). However, I am working to get the spec changed, so I think keeping this bug open is reasonable.
Created attachment 461139 [details] Safari 15.6 matches with other browsers I am unable to reproduce this issue (assuming test case is correct - don't see any console errors and vendor prefixes) in Safari 15.6 on macOS 12.5 and it matches with all other browsers as can be seen from attached screenshot. I think it was fixed along the way and can be marked as "RESOLVED CONFIGURATION CHANGED". Thanks!
I think it's WONTFIX, as the behavior remains not as expected ("should be inset 10px around the page").