As far as I am aware, IE9 should have CSS support for rounded corners. I have apparently coded my page in such a way as this does not occur in IE9 though - although it displ
Making the border radius compatible to IE browsers, follow these steps:
see this question regarding the meta tag and some other possible issues/process to eliminate: IE9 border-radius
It's because you combine filter and border-radius for same element. Try to apply border-radius to one element, and filter to its child element instead.
For IE9, you are correct it doesn't like the border radius and the filter combined. Here is what I followed and it worked perfectly in IE9, as well as all the other browsers.
https://github.com/bfintal/jQuery.IE9Gradius.js
Hope that helps!
You only need to define one number for your border radius if you're using "bottom-left" and so on. By specifying two numbers IE9 may not interpret it correctly.
If you use the following, the first number is the top-left, second is top-right, third is bottom-right, and fourth is bottom-left.
-moz-border-radius: 8px 8px 0px 0px;
-webkit-border-radius: 8px 8px 0px 0px;
-0-border-radius: 8px 8px 0px 0px;
border-radius: 8px 8px 0px 0px;