1 files changed, 16 insertions, 0 deletions
diff --git a/dom/base/test/unit/test_bug737966.js b/dom/base/test/unit/test_bug737966.js
new file mode 100644
index 0000000000..a5b8f48425
--- /dev/null
+++ b/dom/base/test/unit/test_bug737966.js
@@ -0,0 +1,16 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+/* If charset parameter is invalid, the encoding should be detected as UTF-8 */
+
+function run_test() {
+  let body = '<?xml version="1.0"><html>%c3%80</html>';
+  let result = '<?xml version="1.0"><html>\u00c0</html>';
+
+  let xhr = new XMLHttpRequest();
+  xhr.open("GET", "data:text/xml;charset=abc," + body, false);
+  xhr.send(null);
+
+  Assert.equal(xhr.responseText, result);
+}