Created attachment 648974 [details]
User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:14.0) Gecko/20100101 Firefox/14.0.1
Build ID: 20120713134347
Steps to reproduce:
очень большой радиус
должно быть как в webkit
Created attachment 648975 [details]
Could you explain the issue in English, please.
не знаю английского
запустите пример и станет понятно
I do not know English
Run the example and it becomes clear
All the original comment says is "set a very large radius and you get rendering artifacts".
Presumably in this case the large dark gray rectangles.
Note that the transitions are a red herring; they're not needed to reproduce the bug.
Created attachment 649030 [details]
Much simpler testcase
Is this a bug in nsCSSRendering or underlying gfx bug? I see this on Mac, so I suspect the former...
Confirmed on Linux too.
Created attachment 8684574 [details]
testcase 3 - bug 780366 border width greater than 50 percent.htm
Only IE handles this testcase. It reveals that borders aren't drawn correctly (note the colored areas)
I was wrong: there're cases when "border-width > 50% of border-box" isn't required.
I saved 4 testcases in my dropbox folder. Use the "index" page to open the testcases by direct links
> index: https://dl.dropboxusercontent.com/s/h5zhs0gufq3ve9h/index.html?dl=0
> folder: https://www.dropbox.com/sh/hhf4wylz91tu86b/AAAfJ1stZNfh1s4a1UNH4y4ta?dl=0
Please correct me / undo changes if I did something wrong with this bug.