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<!DOCTYPE html>
<style>
#before:before {
/* must be an inline-block */
display: inline-block;
content: 'before';
}
#start:after {
/* must be an inline-block */
display: inline-block;
content: 'after';
}
</style>
<p>Passes if it doesn't crash.</p>
<div id="test">
<span id="before"><!-- no content can be here --></span>
<span>text</span>
<span id="start"><!-- no content can be here --></span>
</div>
<script>
if (window.testRunner)
testRunner.dumpAsText();
var before = document.getElementById('before');
var start = document.getElementById('start');
var test = document.getElementById('test');
// Select from the #start backwards to the start of the line.
window.getSelection().setBaseAndExtent(document.getElementById('start'));
window.getSelection().modify('extend', 'backward', 'lineBoundary')
// Replace the selection with a break. This replaces #before, text,
// #start with two <br>'s.
document.designMode = 'on';
document.execCommand('InsertLineBreak');
// Crash during tear down.
test.innerHTML = "Both pseudos have been removed: " + (before.offsetHeight == 0 && start.offsetHeight == 0);
</script>
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