From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Fri, 19 Apr 2024 02:47:55 +0200
Subject: Adding upstream version 124.0.1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 ...g-context-opacity-changing-target-in-delay.html | 36 ++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 layout/reftests/web-animations/stacking-context-opacity-changing-target-in-delay.html

(limited to 'layout/reftests/web-animations/stacking-context-opacity-changing-target-in-delay.html')
diff --git a/layout/reftests/web-animations/stacking-context-opacity-changing-target-in-delay.html b/layout/reftests/web-animations/stacking-context-opacity-changing-target-in-delay.html
new file mode 100644
index 0000000000..8a568f8b0b
--- /dev/null
+++ b/layout/reftests/web-animations/stacking-context-opacity-changing-target-in-delay.html
@@ -0,0 +1,36 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<title>
+Changing target to an element that does not override opacity animations
+creates a stacking context even if the animation is delay phase
+</title>
+<style>
+span {
+  height: 100px;
+  width: 100px;
+  position: fixed;
+  background: green;
+  top: 50px;
+}
+#first {
+  width: 100px; height: 100px;
+  background: blue;
+  opacity: 1 ! important;
+}
+#second {
+  width: 100px; height: 100px;
+  background: blue;
+}
+</style>
+<span></span>
+<div id="first"></div>
+<div id="second"></div>
+<script>
+  var anim = document.getElementById("first")
+    .animate({ opacity: [0, 1] },
+             { delay: 100000, duration: 100000 });
+  anim.ready.then(function() {
+    anim.effect.target = document.getElementById("second");
+    document.documentElement.classList.remove("reftest-wait");
+  });
+</script>
-- 
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