1 files changed, 17 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/bug1410683.js b/js/src/jit-test/tests/ion/bug1410683.js
new file mode 100644
index 0000000000..669662d4f9
--- /dev/null
+++ b/js/src/jit-test/tests/ion/bug1410683.js
@@ -0,0 +1,17 @@
+class C {};
+C.prototype.a = "a";
+C.prototype.q = "q";
+C.prototype.NaN = NaN;
+class D extends C {
+    foo(p) {
+        return super[p];
+    }
+}
+function f() {
+    var d = new D();
+    for (let p in C.prototype) {
+        assertEq(p, String(d.foo(p)));
+    }
+}
+f();
+f();