// Setting a breakpoint in a non-debuggee Script is an error. load(libdir + "asserts.js"); var g1 = newGlobal({newCompartment: true}); 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);