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diff --git a/testing/web-platform/tests/2dcontext/pixel-manipulation/2d.imageData.create2.large.html b/testing/web-platform/tests/2dcontext/pixel-manipulation/2d.imageData.create2.large.html
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+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by tools/gentest.py. -->
+<title>Canvas test: 2d.imageData.create2.large</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/common/canvas-tests.js"></script>
+<link rel="stylesheet" href="/common/canvas-tests.css">
+<body class="show_output">
+
+<h1>2d.imageData.create2.large</h1>
+<p class="desc">createImageData(sw, sh) works for sizes much larger than the canvas</p>
+
+
+<p class="output">Actual output:</p>
+<canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>
+
+<ul id="d"></ul>
+<script>
+var t = async_test("createImageData(sw, sh) works for sizes much larger than the canvas");
+_addTest(function(canvas, ctx) {
+
+var imgdata = ctx.createImageData(1000, 2000);
+_assertSame(imgdata.data.length, imgdata.width*imgdata.height*4, "imgdata.data.length", "imgdata.width*imgdata.height*4");
+_assert(imgdata.width < imgdata.height, "imgdata.width < imgdata.height");
+_assert(imgdata.width > 0, "imgdata.width > 0");
+var isTransparentBlack = true;
+for (var i = 0; i < imgdata.data.length; i += 7813) // check ~1024 points (assuming normal scaling)
+    if (imgdata.data[i] !== 0)
+        isTransparentBlack = false;
+_assert(isTransparentBlack, "isTransparentBlack");
+
+
+});
+</script>
+