Bug 30475

Summary: Image is not clipped by border-radius
Product: WebKit Reporter: Nathan Vander Wilt <natevw>
Component: Layout and RenderingAssignee: Nobody <webkit-unassigned>
Status: RESOLVED CONFIGURATION CHANGED    
Severity: Normal CC: ahmad.saleem792, ivan.enderlin, lea, moz, natevw, peter, rick2910, simon.fraser
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: All   
OS: OS X 10.6   
Attachments:
Description Flags
Shows ugliness when border is added to border-radius image none

Description Nathan Vander Wilt 2009-10-16 21:01:04 PDT 
Created attachment 41351 [details]
Shows ugliness when border is added to border-radius image

Image corner rounding in Safari 4.0.3 is still wrong. This is related to https://bugs.webkit.org/show_bug.cgi?id=24880, which has two requests (mine and another) to be reopened. Maybe a new bug is more appropriate:


While an image without a border now rounds nicely, if I add a border things get
icky. The image is getting clipped to the outside of the border, rather than
the inside. This means either the image still has square corners showing (if
the border is thicker than the radius) or the border gets drawn over by the
image (if the border is thinner than the radius).

I'd expect the image edge to always follow the inside of the border, as the
workaround in the OP's link shows. (Caveat: I'm not a CSS guru, so maybe the
standard requires clipping to the outside edge of the border. I sure hope not,
as this is terribly ugly.)
Comment 1 Lea Verou 2011-03-09 16:10:40 PST 
This bug still hasn't been fixed. I would suggest its title to be changed to "Replaced content gets clipped according to border box".

The spec clearly dictates that replaced content should be clipped according to the content box: "The content of replaced elements is always trimmed to the content edge curve." (http://www.w3.org/TR/css3-background/#corner-clipping)

IE9 and Firefox 4 both get this right.
Comment 2 Rick van de Westelaken 2011-09-09 07:27:46 PDT 
I can confirm this issue, which Opera 11.51 is also rendering wrong. See http://rivierenlandzakelijk.nl/ (border around the map) for an example.

Chrome: 15.0.874.6 Canary build
Comment 3 j.j. 2012-07-18 15:09:31 PDT 
Duplicate of bug 83206?
Comment 4 Ahmad Saleem 2022-09-24 09:46:36 PDT 
I am not able to reproduce this bug in Safari 16 and all other browsers (Chrome Canary 108 and Firefox Nightly 107) render this same as well.

In case if I am wrong, please reopen but I am marking this as "RESOLVED CONFIGURATION CHANGED". Thanks!

JSFiddle Link (with HTTP updated to HTTPS) - https://jsfiddle.net/zL1gnsqe/show