diff -r 000000000000 -r 6474c204b198 netwerk/test/unit/test_bug412945.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/netwerk/test/unit/test_bug412945.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,42 @@
+Cu.import("resource://testing-common/httpd.js");
+
+var httpserv;
+
+function TestListener() {
+}
+
+TestListener.prototype.onStartRequest = function(request, context) {
+}
+
+TestListener.prototype.onStopRequest = function(request, context, status) {
+  httpserv.stop(do_test_finished);
+}
+
+function run_test() {
+  httpserv = new HttpServer();
+
+  httpserv.registerPathHandler("/bug412945", bug412945);
+
+  httpserv.start(-1);
+
+  // make request
+  var channel =
+      Components.classes["@mozilla.org/network/io-service;1"].
+      getService(Components.interfaces.nsIIOService).
+      newChannel("http://localhost:" + httpserv.identity.primaryPort +
+                 "/bug412945", null, null);
+
+  channel.QueryInterface(Components.interfaces.nsIHttpChannel);
+  channel.requestMethod = "POST";
+  channel.asyncOpen(new TestListener(), null);
+
+  do_test_pending();
+}
+
+function bug412945(metadata, response) {
+  if (!metadata.hasHeader("Content-Length") ||
+      metadata.getHeader("Content-Length") != "0")
+  {
+    do_throw("Content-Length header not found!");
+  }
+}