tor-browser

commit a0c0834370b07fe2abde65070949730619548efe
parent 47522c30a59571a3ad9c2abedba4c8fbb30ebd45
Author: moonira <moonira@google.com>
Date:   Fri, 19 Dec 2025 05:42:10 +0000

Bug 2006129 [wpt PR 56742] - Do not cache styles with css random() in MPC, a=testonly

Automatic update from web-platform-tests
Do not cache styles with css random() in MPC

Mark styles with CSS random() values as not cacheable in MPC.

Bug: 413385732
Change-Id: I38c6d1770ba504602551724908f59f32e73f471b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7246178
Commit-Queue: Munira Tursunova <moonira@google.com>
Reviewed-by: Rune Lillesveen <futhark@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1558777}

--

wpt-commits: 6e25a3af5ef93797aa2dbe239e59e3b4b71a07a1
wpt-pr: 56742

Diffstat:
M
testing/web-platform/tests/css/css-values/random-computed.tentative.html
 | 
27
+++++++++++++++++++++++++++

1 file changed, 27 insertions(+), 0 deletions(-)
diff --git a/testing/web-platform/tests/css/css-values/random-computed.tentative.html b/testing/web-platform/tests/css/css-values/random-computed.tentative.html
@@ -608,4 +608,31 @@ test(() => {
   }
 }, `Fixed: random(fixed <number>, a, b)`);
 
+// Test random value sharing
+test(() => {
+  const holder = document.createElement('div');
+  document.body.appendChild(holder);
+
+  try {
+    const el = document.createElement('div');
+    el.className = 'randomIdentifier';
+    holder.appendChild(el);
+    const elComputedHeight = getComputedStyle(el)['height'];
+
+    var allSame = true;
+    for (i = 0; i < iterations; ++i) {
+      const other = document.createElement('div');
+      other.className = 'randomIdentifier';
+      holder.appendChild(other);
+      const otherComputedHeight = getComputedStyle(other)['height'];
+      if (elComputedHeight != otherComputedHeight) {
+        allSame = false;
+      }
+    }
+    assert_false(allSame);
+  } finally {
+    document.body.removeChild(holder);
+  }
+}, `Different between elements with same identifier random(--identifier, a, b)`);
+
 </script>