PHP HTML5 Shim in functions.php

Posted 2021-05-15

// add ie conditional html5 shim to header
function add_ie_html5_shim () {    
   echo '<!--[if lt IE 9]>';    
   echo '<script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>';    
   echo '<![endif]-->';
}
add_action('wp_head', 'add_ie_html5_shim');