<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><text y="20">This should not crash, but display an error document.</text><font-face id="foo"/> <use xlink:href="#foo"/><error>
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><text y="20">This should not crash, but display an error document.</text><font-face id="foo"/> <use xlink:href="#foo"/><error>