can't get placeholder attribute to work in IE

问题:

iframe in a wordpress, placeholders don't show in IE, BUT they show just fine if you load the iframe directly in IE

http://uslegalsupport.com/contact-us-new/ this is the link with the iframe on the page:

here's the link of JUST the iframe:

https://www.uslegalsupport.com/wp-content/themes/us-legal/ifpage-contact-us.php

this is literally driving me insane...plz help!

回答1:

Try forcing the latest rendering engine with IE=edge in both the frame and its parent.

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