diff -r 000000000000 -r 6474c204b198 docshell/test/browser/browser_bug441169.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/docshell/test/browser/browser_bug441169.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,27 @@
+/* Make sure that netError won't allow HTML injection through badcert parameters.  See bug 441169. */
+var newBrowser
+
+// An edited version of the standard neterror url which attempts to
+// insert a <span id="test_span"> tag into the text.  We will navigate to this page
+// and ensure that the span tag is not parsed as HTML.
+var chromeURL = "about:neterror?e=nssBadCert&u=https%3A//test.kuix.de/&c=UTF-8&d=This%20sentence%20should%20not%20be%20parsed%20to%20include%20a%20%3Cspan%20id=%22test_span%22%3Enamed%3C/span%3E%20span%20tag.%0A%0AThe%20certificate%20is%20only%20valid%20for%20%3Ca%20id=%22cert_domain_link%22%20title=%22kuix.de%22%3Ekuix.de%3C/a%3E%0A%0A(Error%20code%3A%20ssl_error_bad_cert_domain)";
+
+function test() {
+  waitForExplicitFinish();
+  
+  var newTab = gBrowser.addTab();
+  gBrowser.selectedTab = newTab;
+  newBrowser = gBrowser.getBrowserForTab(newTab);
+  
+  window.addEventListener("DOMContentLoaded", checkPage, false);
+  newBrowser.contentWindow.location = chromeURL;
+}
+
+function checkPage() {
+  window.removeEventListener("DOMContentLoaded", checkPage, false);
+  
+  is(newBrowser.contentDocument.getElementById("test_span"), null, "Error message should not be parsed as HTML, and hence shouldn't include the 'test_span' element.");
+  
+  gBrowser.removeCurrentTab();
+  finish();
+}