--- /dev/null
+--- jquery-3.3.1.js 2019-04-01 08:39:29.000000000 +0200
++++ jquery-3.3.1.js 2019-04-01 09:02:39.000000000 +0200
+@@ -260,8 +260,9 @@ jQuery.extend = jQuery.fn.extend = function() {
+ for ( name in options ) {
+ src = target[ name ];
+ copy = options[ name ];
+
++ // Prevent Object.prototype pollution
+ // Prevent never-ending loop
+- if ( target === copy ) {
++ if ( name === "__proto__" || target === copy ) {
+ continue;
+ }
+
src = target[ name ];
copy = options[ name ];
+ // Prevent Object.prototype pollution
// Prevent never-ending loop
- if ( target === copy ) {
+ if ( name === "__proto__" || target === copy ) {
continue;
}