My experience with CSS3 Pie on my website has been incredibly positive. However, when I encountered a Jotform form with a custom CSS button that required radius styling, I discovered that Pie does not work with Jotform. That's when I stumbled upon this meta tag:
<meta http-equiv="X-UA-Compatible" content="IE=Edge" />
Adding this meta tag to the specific page resolved the radius issue in IE8.
This discovery leads me to wonder - if such a simple solution exists to enable older versions of Internet Explorer to render modern CSS, why isn't this tag used as the default method? Are there potential drawbacks or technical limitations that make it impractical?
While it may seem too good to be true, I suspect there must be considerations that prevent widespread adoption of this approach. Although I understand that it doesn't comply with validation standards, some suggest adding it to an .htaaccess file can address this concern.