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diff --git a/testing/web-platform/tests/2dcontext/line-styles/2d.line.miter.obtuse.html b/testing/web-platform/tests/2dcontext/line-styles/2d.line.miter.obtuse.html
new file mode 100644
index 000000000..40ebdd1f8
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+++ b/testing/web-platform/tests/2dcontext/line-styles/2d.line.miter.obtuse.html
@@ -0,0 +1,52 @@
+<!DOCTYPE html>
+<!-- DO NOT EDIT! This test has been generated by tools/gentest.py. -->
+<title>Canvas test: 2d.line.miter.obtuse</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.line.miter.obtuse</h1>
+<p class="desc">Miter joins are drawn correctly with obtuse angles</p>
+
+
+<p class="output">Actual output:</p>
+<canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas>
+<p class="output expectedtext">Expected output:<p><img src="/images/green-100x50.png" class="output expected" id="expected" alt="">
+<ul id="d"></ul>
+<script>
+var t = async_test("Miter joins are drawn correctly with obtuse angles");
+_addTest(function(canvas, ctx) {
+
+ctx.fillStyle = '#f00';
+ctx.fillRect(0, 0, 100, 50);
+
+ctx.lineWidth = 1600;
+ctx.lineJoin = 'miter';
+
+ctx.strokeStyle = '#0f0';
+ctx.miterLimit = 1.083;
+ctx.beginPath();
+ctx.moveTo(800, 10000);
+ctx.lineTo(800, 300);
+ctx.lineTo(10000, -8900);
+ctx.stroke();
+
+ctx.strokeStyle = '#f00';
+ctx.miterLimit = 1.082;
+ctx.beginPath();
+ctx.moveTo(800, 10000);
+ctx.lineTo(800, 300);
+ctx.lineTo(10000, -8900);
+ctx.stroke();
+
+_assertPixel(canvas, 1,1, 0,255,0,255, "1,1", "0,255,0,255");
+_assertPixel(canvas, 48,1, 0,255,0,255, "48,1", "0,255,0,255");
+_assertPixel(canvas, 48,48, 0,255,0,255, "48,48", "0,255,0,255");
+_assertPixel(canvas, 1,48, 0,255,0,255, "1,48", "0,255,0,255");
+
+
+});
+</script>
+