1 files changed, 15 insertions, 0 deletions
diff --git a/js/src/tests/non262/extensions/uneval/regress-621814.js b/js/src/tests/non262/extensions/uneval/regress-621814.js
new file mode 100644
index 0000000000..7e661d97a8
--- /dev/null
+++ b/js/src/tests/non262/extensions/uneval/regress-621814.js
@@ -0,0 +1,15 @@
+// |reftest| skip-if(!this.uneval)
+
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+var expect = 'pass';
+var actual = expect;
+function f({"\xF51F": x}) {}
+try {
+    eval(uneval(f));
+} catch (e) {
+    actual = '' + e;
+}
+reportCompare(expect, actual, "");