diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/debug/onExceptionUnwind-resumption-04.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/debug/onExceptionUnwind-resumption-04.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,17 @@
+// Check that an onExceptionUnwind hook can force a frame to terminate.
+
+var g = newGlobal();
+var dbg = Debugger(g);
+g.eval("function f() { throw 'ksnife'; }");
+var log = '';
+dbg.onDebuggerStatement = function (frame) {
+    log += 'd1';
+    assertEq(frame.eval("f();"), null);
+    log += 'd2';
+};
+dbg.onExceptionUnwind = function (frame, exc) {
+    log += 'u';
+    return null;
+};
+g.eval("debugger;");
+assertEq(log, "d1ud2");