tor-browser

commit ccf612b0a4ae5727f7c50623a3e635db90e98c57
parent aa8f9a6919c757c4e89b683fecfd24ed6e91ae6c
Author: Diego Escalante <descalante@mozilla.com>
Date:   Fri, 24 Oct 2025 19:34:38 +0000

Bug 1986743 - Add deep Implicit Scope Invalidation WPT. r=dshin

Differential Revision: https://phabricator.services.mozilla.com/D270009

Diffstat:
M
testing/web-platform/tests/css/css-cascade/scope-invalidation.html
 | 
28
++++++++++++++++++++++++++++

1 file changed, 28 insertions(+), 0 deletions(-)
diff --git a/testing/web-platform/tests/css/css-cascade/scope-invalidation.html b/testing/web-platform/tests/css/css-cascade/scope-invalidation.html
@@ -932,3 +932,31 @@ test_scope_invalidation(document.currentScript, () => {
   assert_not_green(f);
 }, 'Parent element of subject affecting scope limit')
 </script>
+
+<template>
+  <div class=a>
+    <div><div><div><div>
+      <style>
+        @scope(.a) {
+          @scope {
+            @scope(> .b) {
+              :scope { background: green; }
+            }
+          }
+        }
+      </style>
+      <div class=b></div>
+    </div></div></div></div>
+  </div>
+</template>
+<script>
+test_scope_invalidation(document.currentScript, () => {
+  let a = main.querySelector('.a');
+  let b = main.querySelector('.b');
+  assert_green(b);
+  a.classList.remove('a');
+  assert_not_green(b);
+  a.classList.add('a');
+  assert_green(b);
+}, 'Sandwiched deep implicit scope root, :scope in subject')
+</script>