diff -r 000000000000 -r 6474c204b198 netwerk/test/unit/test_bug369787.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/netwerk/test/unit/test_bug369787.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,72 @@
+Cu.import("resource://testing-common/httpd.js");
+
+const BUGID = "369787";
+var server = null;
+var channel = null;
+
+function change_content_type() {
+  var origType = channel.contentType;
+  const newType = "x-foo/x-bar";
+  channel.contentType = newType;
+  do_check_eq(channel.contentType, newType);
+  channel.contentType = origType;
+  do_check_eq(channel.contentType, origType);
+}
+
+function TestListener() {
+}
+TestListener.prototype.onStartRequest = function(request, context) {
+  try {
+    // request might be different from channel
+    channel = request.QueryInterface(Components.interfaces.nsIChannel);
+
+    change_content_type();
+  } catch (ex) {
+    print(ex);
+    throw ex;
+  }
+}
+TestListener.prototype.onStopRequest = function(request, context, status) {
+  try {
+    change_content_type();
+  } catch (ex) {
+    print(ex);
+    // don't re-throw ex to avoid hanging the test
+  }
+
+  do_timeout(0, after_channel_closed);
+}
+
+function after_channel_closed() {
+  try {
+    change_content_type();
+  } finally {
+    server.stop(do_test_finished);
+  }
+}
+
+function run_test() {
+  // start server
+  server = new HttpServer();
+
+  server.registerPathHandler("/bug" + BUGID, bug369787);
+
+  server.start(-1);
+
+  // make request
+  channel =
+      Components.classes["@mozilla.org/network/io-service;1"].
+      getService(Components.interfaces.nsIIOService).
+      newChannel("http://localhost:" +
+                 server.identity.primaryPort + "/bug" + BUGID, null, null);
+
+  channel.QueryInterface(Components.interfaces.nsIHttpChannel);
+  channel.asyncOpen(new TestListener(), null);
+
+  do_test_pending();
+}
+
+// PATH HANDLER FOR /bug369787
+function bug369787(metadata, response) {
+  /* do nothing */
+}