1 files changed, 18 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/bug673569.js b/js/src/jit-test/tests/basic/bug673569.js
new file mode 100644
index 000000000..acc54277a
--- /dev/null
+++ b/js/src/jit-test/tests/basic/bug673569.js
@@ -0,0 +1,18 @@
+function qualified_tests(prefix) {
+  let scopes = evalReturningScope(prefix + "var x = 1");
+  assertEq(scopes.vars.x, 1);
+}
+
+qualified_tests("");
+qualified_tests("'use strict'; ");
+
+let scopes = evalReturningScope("x = 1");
+assertEq(scopes.vars.x, 1);
+
+let fail = true;
+try {
+  evalReturningScope("'use strict'; x = 1");
+} catch (e) {
+  fail = false;
+}
+assertEq(fail, false);