lib/execjs/support/jsc_runner.js in execjs-2.8.1 vs lib/execjs/support/jsc_runner.js in execjs-2.9.0

@@ -1,9 +1,16 @@
 (function(program, execJS) { execJS(program) })(function() { #{source}
 }, function(program) {
   var output;
   try {
     delete this.console;
+    delete this.setTimeout;
+    delete this.setInterval;
+    delete this.clearTimeout;
+    delete this.clearInterval;
+    delete this.setImmediate;
+    delete this.clearImmediate;
+
     result = program();
     if (typeof result == 'undefined' && result !== null) {
       print('["ok"]');
     } else {
       try {