1 files changed, 36 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/bug1330339.js b/js/src/jit-test/tests/debug/bug1330339.js
new file mode 100644
index 0000000000..4654a93fae
--- /dev/null
+++ b/js/src/jit-test/tests/debug/bug1330339.js
@@ -0,0 +1,36 @@
+// |jit-test| test-also=--wasm-compiler=optimizing; error: TestComplete
+
+if (!wasmDebuggingEnabled())
+     throw "TestComplete";
+
+let module = new WebAssembly.Module(wasmTextToBinary(`
+    (module
+        (import "global" "func" (func))
+        (func (export "test")
+         call 0 ;; calls the import, which is func #0
+        )
+    )
+`));
+
+let imports = {
+  global: {
+    func: function () {
+        let g = newGlobal({newCompartment: true});
+        let dbg = new Debugger(g);
+        dbg.onExceptionUnwind = function (frame) {
+            frame.older;
+        };
+        g.eval("throw new Error();");
+    }
+  }
+};
+let instance = new WebAssembly.Instance(module, imports);
+
+try {
+    instance.exports.test();
+    assertEq(false, true);
+} catch (e) {
+    assertEq(e.constructor.name, 'Error');
+}
+
+throw "TestComplete";