$url = $match['file'][0];
// Skip fully-qualified and protocol-relative URLs and data URIs
- if ( substr( $url, 0, 2 ) === '//' || parse_url( $url, PHP_URL_SCHEME ) ) {
+ // Also skips the rare `behavior` property specifying application's default behavior
+ if (
+ substr( $url, 0, 2 ) === '//' ||
+ parse_url( $url, PHP_URL_SCHEME ) ||
+ substr( $url, 0, 9 ) === '#default#'
+ ) {
break;
}
// Pass thru fully-qualified and protocol-relative URLs and data URIs, as well as local URLs if
// we can't expand them.
- if ( self::isRemoteUrl( $url ) || self::isLocalUrl( $url ) ) {
+ // Also skips the rare `behavior` property specifying application's default behavior
+ if (
+ self::isRemoteUrl( $url ) ||
+ self::isLocalUrl( $url ) ||
+ substr( $url, 0, 9 ) === '#default#'
+ ) {
return $url;
}