Ticket #36735: 36735.4.patch

src/wp-includes/js/shortcode.js

@@ -326 +326 @@
                         _.each( options.attrs, function( value, attr ) {
                                 text += ' ' + attr;
 
-                                // Use empty attribute notation where possible.
-                                if ( '' === value ) {
-                                        return;
-                                }
-
                                 // Convert boolean values to strings.
                                 if ( _.isBoolean( value ) ) {
                                         value = value ? 'true' : 'false';