<!DOCTYPE html>
<svg mask="url(#f)">
<filter id="f"/>
</svg>
<p>PASS if no crash in debug</p>
<script>
if (window.testRunner)
testRunner.dumpAsText();
</script>
<!DOCTYPE html>
<svg mask="url(#f)">
<filter id="f"/>
</svg>
<p>PASS if no crash in debug</p>
<script>
if (window.testRunner)
testRunner.dumpAsText();
</script>