Why Aren\'t My Rounded Corners Working in IE9?

IE9 Border Radius Issues

Despite implementing rounded corners in Firefox, Chrome, and Safari, your code fails to achieve the same effect in IE9. Specifically, rounded corners only appear on the top left and right of a table data (td) element. To address this issue, consider adding the following code to your page header:

<meta http-equiv="X-UA-Compatible" content="IE=edge" />

This code instructs IE to use the latest rendering engine, which for IE9 would be version 9. By default, IE9 might not support border radius, but specifying "edge" forces it to utilize the most recent engine that does. Therefore, adding this line should enable rounded corners in all supported browsers, including IE9.

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