1 files changed, 50 insertions, 0 deletions
diff --git a/browser/base/content/test/general/browser_bug431826.js b/browser/base/content/test/general/browser_bug431826.js
new file mode 100644
index 000000000..592ea9cef
--- /dev/null
+++ b/browser/base/content/test/general/browser_bug431826.js
@@ -0,0 +1,50 @@
+function remote(task) {
+  return ContentTask.spawn(gBrowser.selectedBrowser, null, task);
+}
+
+add_task(function* () {
+  gBrowser.selectedTab = gBrowser.addTab();
+
+  let promise = remote(function () {
+    return ContentTaskUtils.waitForEvent(this, "DOMContentLoaded", true, event => {
+      return content.document.documentURI != "about:blank";
+    }).then(() => 0); // don't want to send the event to the chrome process
+  });
+  gBrowser.loadURI("https://nocert.example.com/");
+  yield promise;
+
+  yield remote(() => {
+    // Confirm that we are displaying the contributed error page, not the default
+    let uri = content.document.documentURI;
+    Assert.ok(uri.startsWith("about:certerror"), "Broken page should go to about:certerror, not about:neterror");
+  });
+
+  yield remote(() => {
+    let div = content.document.getElementById("badCertAdvancedPanel");
+    // Confirm that the expert section is collapsed
+    Assert.ok(div, "Advanced content div should exist");
+    Assert.equal(div.ownerGlobal.getComputedStyle(div).display,
+      "none", "Advanced content should not be visible by default");
+  });
+
+  // Tweak the expert mode pref
+  gPrefService.setBoolPref("browser.xul.error_pages.expert_bad_cert", true);
+
+  promise = remote(function () {
+    return ContentTaskUtils.waitForEvent(this, "DOMContentLoaded", true);
+  });
+  gBrowser.reload();
+  yield promise;
+
+  yield remote(() => {
+    let div = content.document.getElementById("badCertAdvancedPanel");
+    Assert.ok(div, "Advanced content div should exist");
+    Assert.equal(div.ownerGlobal.getComputedStyle(div).display,
+      "block", "Advanced content should be visible by default");
+  });
+
+  // Clean up
+  gBrowser.removeCurrentTab();
+  if (gPrefService.prefHasUserValue("browser.xul.error_pages.expert_bad_cert"))
+    gPrefService.clearUserPref("browser.xul.error_pages.expert_bad_cert");
+});