diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/debug/Debugger-onEnterFrame-resumption-04.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/debug/Debugger-onEnterFrame-resumption-04.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,16 @@
+// If debugger.onEnterFrame returns undefined, the frame should continue execution.
+
+var g = newGlobal();
+var dbg = Debugger(g);
+var hits = 0;
+var savedFrame;
+dbg.onEnterFrame = function (frame) {
+    hits++;
+    savedFrame = frame;
+    return undefined;
+};
+
+savedFrame = undefined;
+assertEq(g.eval("'pass';"), "pass");
+assertEq(savedFrame.live, false);
+assertEq(hits, 1);