diff -r 000000000000 -r 6474c204b198 browser/devtools/netmonitor/test/sjs_status-codes-test-server.sjs
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/devtools/netmonitor/test/sjs_status-codes-test-server.sjs	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,37 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+const { classes: Cc, interfaces: Ci } = Components;
+
+function handleRequest(request, response) {
+  response.processAsync();
+
+  let params = request.queryString.split("&");
+  let status = params.filter((s) => s.contains("sts="))[0].split("=")[1];
+
+  let timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
+  timer.initWithCallback(() => {
+    // to avoid garbage collection
+    timer = null;
+    switch (status) {
+      case "100":
+        response.setStatusLine(request.httpVersion, 101, "Switching Protocols");
+        break;
+      case "200":
+        response.setStatusLine(request.httpVersion, 202, "Created");
+        break;
+      case "300":
+        response.setStatusLine(request.httpVersion, 303, "See Other");
+        break;
+      case "400":
+        response.setStatusLine(request.httpVersion, 404, "Not Found");
+        break;
+      case "500":
+        response.setStatusLine(request.httpVersion, 501, "Not Implemented");
+        break;
+    }
+    response.setHeader("Content-Type", "text/plain; charset=utf-8", false);
+    response.write("Hello status code " + status + "!");
+    response.finish();
+  }, 10, Ci.nsITimer.TYPE_ONE_SHOT); // Make sure this request takes a few ms.
+}