diff -r 000000000000 -r 6474c204b198 content/base/test/bug457746.sjs
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/content/base/test/bug457746.sjs	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,11 @@
+function handleRequest(request, response)
+{
+  response.setHeader("Content-Type", "text/plain; charset=ISO-8859-1", false);
+  const body = [0xC1];
+  var bos = Components.classes["@mozilla.org/binaryoutputstream;1"]
+      .createInstance(Components.interfaces.nsIBinaryOutputStream);
+  bos.setOutputStream(response.bodyOutputStream);
+
+  bos.writeByteArray(body, body.length);
+}
+