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+<!DOCTYPE html>
+<html>
+<head>
+ <meta charset="utf-8">
+ <meta name="viewport" content="width=device-width, initial-scale=1">
+ <title>View Timeline attached to an SVG graphics element in a nested &lt;svg></title>
+</head>
+<style type="text/css">
+ @keyframes stroke {
+ from { stroke: rgb(0, 0, 254); }
+ to { stroke: rgb(0, 128, 0); }
+ }
+
+ #line {
+ animation: stroke auto linear both;
+ animation-timeline: view();
+ animation-range: exit-crossing;
+ }
+ .spacer {
+ height: 100vh;
+ }
+</style>
+<body>
+<svg width="100" height="3000" stroke="red" stroke-width="5">
+ <svg>
+ <path id="line" d="M 50 0 V 3000"></path>
+ </svg>
+</svg>
+<div class="spacer"></div>
+</body>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/web-animations/testcommon.js"></script>
+<script>
+ promise_test(async t => {
+ const scroller = document.scrollingElement;
+ const target = document.getElementById('line');
+ const anim = target.getAnimations()[0];
+ await anim.ready;
+ assert_equals(getComputedStyle(target).stroke, 'rgb(0, 0, 254)');
+ scroller.scrollTop =
+ 0.5*(scroller.scrollHeight - scroller.clientHeight);
+ await waitForNextFrame();
+ assert_equals(getComputedStyle(target).stroke, 'rgb(0, 64, 127)');
+ }, 'View timeline attached to SVG graphics element');
+</script>
+</html>