1 files changed, 56 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 0000000000..b64e511aec
--- /dev/null
+++ b/browser/base/content/test/general/browser_bug431826.js
@@ -0,0 +1,56 @@
+function remote(task) {
+  return SpecialPowers.spawn(gBrowser.selectedBrowser, [], task);
+}
+
+add_task(async function() {
+  gBrowser.selectedTab = BrowserTestUtils.addTab(gBrowser);
+
+  let promise = BrowserTestUtils.waitForErrorPage(gBrowser.selectedBrowser);
+  BrowserTestUtils.loadURI(gBrowser, "https://nocert.example.com/");
+  await promise;
+
+  await 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"
+    );
+  });
+
+  await 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
+  Services.prefs.setBoolPref("browser.xul.error_pages.expert_bad_cert", true);
+
+  promise = BrowserTestUtils.waitForErrorPage(gBrowser.selectedBrowser);
+  gBrowser.reload();
+  await promise;
+
+  await 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 (
+    Services.prefs.prefHasUserValue("browser.xul.error_pages.expert_bad_cert")
+  ) {
+    Services.prefs.clearUserPref("browser.xul.error_pages.expert_bad_cert");
+  }
+});