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Test Info:

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Preview of https://hg.mozilla.org/mozilla-central/raw-file/tip/layout/reftests/svg/smil/anim-remove-9.svg
class="reftest-wait"
onload="go()">
<!-- Bug 728758 - Removing a stacked animation fails to update -->
<!-- In this test we check that removing an animation applied on top of
another animation causes the underlying animation's result to show. -->
<script>
function go() {
document.documentElement.pauseAnimations();
// Force a sample after starting the bottom animation, but before starting
// the top animation.
document.documentElement.setCurrentTime(0.5);
// Sample again after the top animation has started
document.documentElement.setCurrentTime(1);
// Remove top animation
var anim = document.getElementById("anim");
anim.parentNode.removeChild(anim);
// Sample again
document.documentElement.setCurrentTime(1);
document.documentElement.removeAttribute("class");
}
</script>
<rect x="15" y="15" width="200" height="200" fill="orange">
<set attributeName="fill" to="blue"/>
<set attributeName="fill" to="red" begin="1s" id="anim"/>
</rect>
</svg>