<!doctype html>

<style>
@keyframes anim {
    from { animation-timing-function: unset; }
    50% { animation-timing-function: inherit; }
    to { animation-timing-function: initial; }
}
</style>

<div style="animation: anim 10s">This test passes if it doesn't crash</div>

<script>
if (window.testRunner)
  testRunner.dumpAsText();
</script>