WordPress Version: 6.1
/**
* Removes the HTML JavaScript entities found in early versions of Netscape 4.
*
* Previously, this function was pulled in from the original
* import of kses and removed a specific vulnerability only
* existent in early version of Netscape 4. However, this
* vulnerability never affected any other browsers and can
* be considered safe for the modern web.
*
* The regular expression which sanitized this vulnerability
* has been removed in consideration of the performance and
* energy demands it placed, now merely passing through its
* input to the return.
*
* @since 1.0.0
* @deprecated 4.7.0 Officially dropped security support for Netscape 4.
*
* @param string $content
* @return string
*/
function wp_kses_js_entities($content)
{
_deprecated_function(__FUNCTION__, '4.7.0');
return preg_replace('%&\s*\{[^}]*(\}\s*;?|$)%', '', $content);
}