tor-browser

commit 8af32bf2f7249de7ba4858af5f3912c504804257
parent 376d5c66dc967fc0fbe869d41bb2509543e16e7b
Author: Jack Brown <jbrown@mozilla.com>
Date:   Tue, 18 Nov 2025 18:19:23 +0000

Bug 1997449 - Added support page slug to NetErrorCard, added tests for updated network error page. r=niklas

Differential Revision: https://phabricator.services.mozilla.com/D272542

Diffstat:
M
browser/base/content/test/about/browser.toml
 | 
2
++
M
browser/base/content/test/about/browser_aboutCertError_offlineSupport.js
 | 
5
++++-
A
browser/base/content/test/about/browser_aboutCertError_offlineSupport_feltPrivacyV1.js
 | 
85
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
M
toolkit/content/net-error-card.mjs
 | 
16
++++++++++++++++

4 files changed, 107 insertions(+), 1 deletion(-)
diff --git a/browser/base/content/test/about/browser.toml b/browser/base/content/test/about/browser.toml
@@ -30,6 +30,8 @@ support-files = [
 
 ["browser_aboutCertError_offlineSupport.js"]
 
+["browser_aboutCertError_offlineSupport_feltPrivacyV1.js"]
+
 ["browser_aboutCertError_telemetry.js"]
 
 ["browser_aboutDialog_distribution.js"]
diff --git a/browser/base/content/test/about/browser_aboutCertError_offlineSupport.js b/browser/base/content/test/about/browser_aboutCertError_offlineSupport.js
@@ -11,7 +11,10 @@ const OFFLINE_SUPPORT_PAGE =
 
 add_setup(async function () {
   await SpecialPowers.pushPrefEnv({
-    set: [["test.wait300msAfterTabSwitch", true]],
+    set: [
+      ["test.wait300msAfterTabSwitch", true],
+      ["security.certerrors.felt-privacy-v1", false],
+    ],
   });
 });
 
diff --git a/browser/base/content/test/about/browser_aboutCertError_offlineSupport_feltPrivacyV1.js b/browser/base/content/test/about/browser_aboutCertError_offlineSupport_feltPrivacyV1.js
@@ -0,0 +1,85 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const BAD_CERT_PAGE = "https://expired.example.com";
+const DUMMY_SUPPORT_BASE_PATH = "/1/firefox/fxVersion/OSVersion/language/";
+const DUMMY_SUPPORT_URL = BAD_CERT_PAGE + DUMMY_SUPPORT_BASE_PATH;
+const OFFLINE_SUPPORT_PAGE =
+  "chrome://global/content/neterror/supportpages/time-errors.html";
+
+add_setup(async function () {
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      ["test.wait300msAfterTabSwitch", true],
+      ["security.certerrors.felt-privacy-v1", true],
+    ],
+  });
+});
+
+add_task(async function testOfflineSupportPage() {
+  // Cache the original value of app.support.baseURL pref to reset later
+  let originalBaseURL = Services.prefs.getCharPref("app.support.baseURL");
+
+  Services.prefs.setCharPref("app.support.baseURL", DUMMY_SUPPORT_URL);
+  let errorTab = await openErrorPage(BAD_CERT_PAGE);
+
+  let offlineSupportPromise = BrowserTestUtils.waitForNewTab(
+    gBrowser,
+    DUMMY_SUPPORT_URL + "time-errors"
+  );
+  await SpecialPowers.spawn(
+    errorTab.linkedBrowser,
+    [DUMMY_SUPPORT_URL],
+    async expectedURL => {
+      let doc = content.document;
+
+      const netErrorCard = doc.querySelector("net-error-card").wrappedJSObject;
+      await netErrorCard.getUpdateComplete();
+
+      netErrorCard.advancedButton.scrollIntoView();
+      EventUtils.synthesizeMouseAtCenter(
+        netErrorCard.advancedButton,
+        {},
+        content
+      );
+
+      await ContentTaskUtils.waitForCondition(
+        () => ContentTaskUtils.isVisible(netErrorCard.advancedContainer),
+        "Advanced container is visible"
+      );
+      Assert.ok(
+        netErrorCard.advancedShowing,
+        "Advanced showing attribute should be true"
+      );
+      Assert.ok(ContentTaskUtils.isVisible(netErrorCard.advancedContainer));
+
+      let learnMoreLink = netErrorCard.learnMoreLink;
+      Assert.ok(learnMoreLink, '"Learn More" link exists.');
+
+      let supportPageURL = learnMoreLink.getAttribute("href");
+      Assert.equal(
+        supportPageURL,
+        expectedURL + "time-errors",
+        "Correct support page URL has been set"
+      );
+      learnMoreLink.scrollIntoView();
+      Assert.ok(ContentTaskUtils.isVisible(learnMoreLink));
+      await EventUtils.synthesizeMouseAtCenter(learnMoreLink, {}, content);
+    }
+  );
+  let offlineSupportTab = await offlineSupportPromise;
+  await BrowserTestUtils.browserLoaded(
+    gBrowser.selectedBrowser,
+    false,
+    OFFLINE_SUPPORT_PAGE
+  );
+
+  // Reset this pref instead of clearing it to maintain globally set
+  // custom value for testing purposes.
+  Services.prefs.setCharPref("app.support.baseURL", originalBaseURL);
+
+  await BrowserTestUtils.removeTab(offlineSupportTab);
+  await BrowserTestUtils.removeTab(errorTab);
+});
diff --git a/toolkit/content/net-error-card.mjs b/toolkit/content/net-error-card.mjs
@@ -124,6 +124,22 @@ export class NetErrorCard extends MozLitElement {
       this.hostname += ":" + port;
     }
 
+    // We show an offline support page in case of a system-wide error,
+    // when a user cannot connect to the internet and access the SUMO website.
+    // For example, clock error, which causes certerrors across the web or
+    // a security software conflict where the user is unable to connect
+    // to the internet.
+    // The URL that prompts us to show an offline support page should have the following
+    // format: "https://support.mozilla.org/1/firefox/%VERSION%/%OS%/%LOCALE%/supportPageSlug",
+    // so we can extract the support page slug.
+    let baseURL = RPMGetFormatURLPref("app.support.baseURL");
+    if (document.location.href.startsWith(baseURL)) {
+      let supportPageSlug = document.location.pathname.split("/").pop();
+      RPMSendAsyncMessage("DisplayOfflineSupportPage", {
+        supportPageSlug,
+      });
+    }
+
     if (getCSSClass() == "expertBadCert") {
       this.toggleAdvancedShowing();
     }