<!DOCTYPE html> <!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. --> <title>OffscreenCanvas test: initial.reset.different</title> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> <script src="/html/canvas/resources/canvas-tests.js"></script> <h1>initial.reset.different</h1> <p class="desc">Changing size resets canvas to transparent black</p> <script> var t = async_test("Changing size resets canvas to transparent black"); var t_pass = t.done.bind(t); var t_fail = t.step_func(function(reason) { throw reason; }); t.step(function() { var canvas = new OffscreenCanvas(100, 50); var ctx = canvas.getContext('2d'); ctx.fillStyle = '#f00'; ctx.fillRect(0, 0, 50, 50); _assertPixel(canvas, 20,20, 255,0,0,255); canvas.width = 50; _assertPixel(canvas, 20,20, 0,0,0,0); t.done(); }); </script>