diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/debug/Frame-onPop-09.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/debug/Frame-onPop-09.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,23 @@
+// Setting onPop handlers from an onExceptionUnwind handler works.
+var g = newGlobal();
+var dbg = new Debugger(g);
+var log;
+
+dbg.onExceptionUnwind = function handleUnwind(frame) {
+    log += 'u';
+    assertEq(frame.type, "eval");
+    frame.onPop = function handleCallPop(c) {
+        log += ')';
+        assertEq(c.throw, 'up');
+    };
+};
+
+log = "";
+try {
+    g.eval("throw 'up';");
+    log += '-';
+} catch (x) {
+    log += 'c';
+    assertEq(x, 'up');
+}
+assertEq(log, 'u)c');