diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/debug/Debugger-onNewGlobalObject-08.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/debug/Debugger-onNewGlobalObject-08.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,26 @@
+// Creating a global within an onNewGlobalObject handler causes a recursive handler invocation.
+//
+// This isn't really desirable behavior, as presumably a global created while a
+// handler is running is one the debugger is creating for its own purposes and
+// should not be observed, but if this behavior changes, we sure want to know.
+
+var dbg = new Debugger;
+var log;
+var depth;
+
+dbg.onNewGlobalObject = function (global) {
+  log += '('; depth++;
+
+  assertEq(global.seen, undefined);
+  global.seen = true;
+
+  if (depth < 3)
+    newGlobal();
+
+  log += ')'; depth--;
+};
+
+log = '';
+depth = 0;
+newGlobal();
+assertEq(log, '((()))');