object-sizing-no-width-height-change-content-box-size.xhtml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML Basic 1.1//EN" "http://www.w3.org/TR/xhtml-basic/xhtml-basic11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<script src="../resources/text-based-repaint.js"></script>
<style>
object {
    background: red;
}
</style>
</head>
<body onload="runRepaintAndPixelTest()">
    <!-- No red should be visible after the resizing -->
    <div id="contentBox" style="width: 200px; height: 400px; border: 1px solid red;">
        <object data="../../../svg/custom/resources/embedded.svg" width="100%" height="100%" type="image/svg+xml"/>
    </div>
        
    <script>
        function repaintTest() {
            document.getElementById("contentBox").style.setProperty("width", "400px");
        }
    </script>
</body>
</html>

chromium/third_party/blink/web_tests/paint/invalidation/svg/object-sizing-no-width-height-change-content-box-size.xhtml