diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/debug/breakpoint-02.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/debug/breakpoint-02.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,15 @@
+// Setting a breakpoint in a non-debuggee Script is an error.
+
+load(libdir + "asserts.js");
+
+var g1 = newGlobal();
+var g2 = g1.eval("newGlobal('same-compartment')");
+g2.eval("function f() { return 2; }");
+g1.f = g2.f;
+
+var dbg = Debugger(g1);
+var s;
+dbg.onDebuggerStatement = function (frame) { s = frame.eval("f").return.script; };
+g1.eval("debugger;");
+
+assertThrowsInstanceOf(function () { s.setBreakpoint(0, {}); }, Error);