1 files changed, 21 insertions, 0 deletions
diff --git a/js/src/tests/non262/regress/regress-573875.js b/js/src/tests/non262/regress/regress-573875.js
new file mode 100644
index 0000000000..fcfc00a9e4
--- /dev/null
+++ b/js/src/tests/non262/regress/regress-573875.js
@@ -0,0 +1,21 @@
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+var o = {__iterator__:null, a:1, b:2, c:3}
+var expect = '__iterator__,a,b,c,';
+var actual = '';
+
+try {
+    for (var i in o)
+        actual += i + ',';
+} catch (e) {
+    actual = '' + e;
+    if (/invalid __iterator__ value/.test(actual) ||
+        /null is not a function/.test(actual)) {
+        expect = actual;
+    }
+}
+
+reportCompare(expect, actual, "ok");