1 files changed, 7 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/bug870328.js b/js/src/jit-test/tests/ion/bug870328.js
new file mode 100644
index 0000000000..f5f0b1e9d5
--- /dev/null
+++ b/js/src/jit-test/tests/ion/bug870328.js
@@ -0,0 +1,7 @@
+var g = newGlobal("same-compartment");
+try {
+    evalcx("'use strict'; (function() { x = 33; })()", g);
+    assertEq(0, 1);
+} catch(e) {
+    assertEq(e.toString().includes("variable x"), true);
+}