chromium/third_party/blink/web_tests/svg/as-iframe/svg-in-iframe.html

<!DOCTYPE html>
<style>iframe { border:none }</style>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<iframe src="../as-image/resources/200x200-blue-rect.svg">
</iframe>
<script>
    t = async_test("Test <iframe> and <svg> size");
    function check() {
        var iframe = document.querySelector('iframe');
        var iframeRect = iframe.getBoundingClientRect();
        var svg = iframe.contentDocument.documentElement;
        var svgRect = svg.getBoundingClientRect();

        assert_equals(iframeRect.width, 300, "width should be fallback width.");
        assert_equals(iframeRect.height, 150, "height should be the fallback height 150.");
        assert_equals(svgRect.width, svg.width.baseVal.value, "width should be what the <svg> requests.");
        assert_equals(svgRect.height, svg.height.baseVal.value, "height should be what the <svg> requests.");

        t.done();
    }
    t.step(function() {
        addEventListener('load', t.step_func(check));
    });
</script>
<div id="log"></div>