commit 83900ee6b82f3ff3d14c5a5d843697df4db28036
parent 0cd0cc4226417d7cb4bba784a6f93f49756137a0
Author: Thomas Wisniewski <twisniewski@mozilla.com>
Date: Tue, 2 Dec 2025 18:41:13 +0000
Bug 1999198 - add an Android-only JS webcompat intervention for anime-bit.ru; r=ksenia,webcompat-reviewers
Differential Revision: https://phabricator.services.mozilla.com/D274652
Diffstat:
4 files changed, 82 insertions(+), 1 deletion(-)
diff --git a/browser/extensions/webcompat/data/interventions.json b/browser/extensions/webcompat/data/interventions.json
@@ -6047,6 +6047,23 @@
}
]
},
+ "1999198": {
+ "label": "anime-bit.ru",
+ "bugs": {
+ "1999198": {
+ "issue": "broken-scrolling",
+ "matches": ["*://*.anime-bit.ru/*"]
+ }
+ },
+ "interventions": [
+ {
+ "platforms": ["android"],
+ "content_scripts": {
+ "js": ["bug1999198-anime-bit.ru-fix-broken-scrolling.js"]
+ }
+ }
+ ]
+ },
"1999488": {
"label": "languageacademy.com.au",
"bugs": {
diff --git a/browser/extensions/webcompat/injections/js/bug1999198-anime-bit.ru-fix-broken-scrolling.js b/browser/extensions/webcompat/injections/js/bug1999198-anime-bit.ru-fix-broken-scrolling.js
@@ -0,0 +1,29 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/**
+ * Bug 1999198 - Fix broken scrolling on anime-bit.ru
+ *
+ * The site uses quirks mode, and due to a related interop issue their page
+ * will not load more content as the page is scrolled down. This fixes it.
+ */
+
+/* globals exportFunction */
+
+console.info(
+ "documentElement.clientHeight has been overridden for compatibility reasons. See https://bugzilla.mozilla.org/show_bug.cgi?id=1999198 for details."
+);
+
+const proto = Element.prototype.wrappedJSObject;
+const clientHeightDesc = Object.getOwnPropertyDescriptor(proto, "clientHeight");
+const origHeight = clientHeightDesc.get;
+clientHeightDesc.get = exportFunction(function () {
+ if (this === document.documentElement) {
+ return this.scrollHeight;
+ }
+ return origHeight.call(this);
+}, window);
+Object.defineProperty(proto, "clientHeight", clientHeightDesc);
diff --git a/browser/extensions/webcompat/manifest.json b/browser/extensions/webcompat/manifest.json
@@ -2,7 +2,7 @@
"manifest_version": 2,
"name": "Web Compatibility Interventions",
"description": "Urgent post-release fixes for web compatibility.",
- "version": "147.9.0",
+ "version": "147.10.0",
"browser_specific_settings": {
"gecko": {
"id": "webcompat@mozilla.org",
diff --git a/testing/webcompat/interventions/tests/test_1999198_anime-bit_ru.py b/testing/webcompat/interventions/tests/test_1999198_anime-bit_ru.py
@@ -0,0 +1,35 @@
+import pytest
+
+URL = "https://anime-bit.ru/"
+HIDDEN_IMAGES_CSS = ".anime_list.shadow.lazy"
+
+
+async def are_wrong_images_hidden(client):
+ await client.navigate(URL, wait="none")
+ client.execute_script("window.scrollTo(0, 200)")
+ # The site hides images with a class .lazy {display:none}, so we can check
+ # if any of those images are onscreen and should be lacking that CSS class.
+ return client.execute_script(
+ """
+ for (const img of arguments[0]) {
+ if (img.getBoundingClientRect().top < window.innerHeight) {
+ return true;
+ }
+ }
+ """,
+ client.await_css(HIDDEN_IMAGES_CSS, all=True),
+ )
+
+
+@pytest.mark.only_platforms("android")
+@pytest.mark.asyncio
+@pytest.mark.with_interventions
+async def test_enabled(client):
+ assert not await are_wrong_images_hidden(client)
+
+
+@pytest.mark.only_platforms("android")
+@pytest.mark.asyncio
+@pytest.mark.without_interventions
+async def test_disabled(client):
+ assert await are_wrong_images_hidden(client)
