chromium/third_party/blink/web_tests/svg/hixie/error/009.xml

<svg xmlns="http://www.w3.org/2000/svg">
 <rect x="10" y="10" width="200" height="200" fill="red"/>
 <rect x="10" y="10" width="200" height="200" fill="green" foo="error"/> <!-- attribute should be ignored -->
</svg>