diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/debug/Frame-onPop-generators-01.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/debug/Frame-onPop-generators-01.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,20 @@
+// Returning {throw:} from an onPop handler when yielding works and
+// does not close the generator-iterator.
+
+load(libdir + "asserts.js");
+
+var g = newGlobal();
+var dbg = new Debugger;
+var gw = dbg.addDebuggee(g);
+dbg.onDebuggerStatement = function handleDebugger(frame) {
+    frame.onPop = function (c) {
+        return {throw: "fit"};
+    };
+};
+g.eval("function g() { for (var i = 0; i < 10; i++) { debugger; yield i; } }");
+g.eval("var it = g();");
+var rv = gw.evalInGlobal("it.next();");
+assertEq(rv.throw, "fit");
+
+dbg.enabled = false;
+assertEq(g.it.next(), 1);