haikuwebkit/LayoutTests/webgl/webgl2-rendering-context-defined.html

<div id="result">PASS if WebGL2RenderingContext is defined.</div>
<script>
if (window.testRunner)
    testRunner.dumpAsText();

if (typeof WebGL2RenderingContext === "undefined")
    document.getElementById("result").innerHTML = "FAIL";
</script>