diff -r 000000000000 -r 6474c204b198 content/base/test/csp/file_csp_testserver.sjs
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/content/base/test/csp/file_csp_testserver.sjs	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,45 @@
+// SJS file for CSP mochitests
+
+Components.utils.import("resource://gre/modules/NetUtil.jsm");
+
+function loadHTMLFromFile(path) {
+  // Load the HTML to return in the response from file.
+  // Since it's relative to the cwd of the test runner, we start there and
+  // append to get to the actual path of the file.
+  var testHTMLFile =
+    Components.classes["@mozilla.org/file/directory_service;1"].
+    getService(Components.interfaces.nsIProperties).
+    get("CurWorkD", Components.interfaces.nsILocalFile);
+  var dirs = path.split("/");
+  for (var i = 0; i < dirs.length; i++) {
+    testHTMLFile.append(dirs[i]);
+  }
+  var testHTMLFileStream =
+    Components.classes["@mozilla.org/network/file-input-stream;1"].
+    createInstance(Components.interfaces.nsIFileInputStream);
+  testHTMLFileStream.init(testHTMLFile, -1, 0, 0);
+  var testHTML = NetUtil.readInputStreamToString(testHTMLFileStream, testHTMLFileStream.available());
+  return testHTML;
+}
+
+function handleRequest(request, response)
+{
+  var query = {};
+  request.queryString.split('&').forEach(function (val) {
+    var [name, value] = val.split('=');
+    query[name] = unescape(value);
+  });
+
+  var csp = unescape(query['csp']);
+  var file = unescape(query['file']);
+
+  // avoid confusing cache behaviors
+  response.setHeader("Cache-Control", "no-cache", false);
+
+  // Deliver the CSP policy encoded in the URI
+  response.setHeader("Content-Security-Policy", csp, false);
+
+  // Send HTML to test allowed/blocked behaviors
+  response.setHeader("Content-Type", "text/html", false);
+  response.write(loadHTMLFromFile(file));
+}