1 files changed, 64 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/extra/offscreen-issue.html b/dom/canvas/test/webgl-conf/checkout/extra/offscreen-issue.html
new file mode 100644
index 000000000..598be0e8a
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/extra/offscreen-issue.html
@@ -0,0 +1,64 @@
+<!--
+
+/*
+** Copyright (c) 2012 The Khronos Group Inc.
+**
+** Permission is hereby granted, free of charge, to any person obtaining a
+** copy of this software and/or associated documentation files (the
+** "Materials"), to deal in the Materials without restriction, including
+** without limitation the rights to use, copy, modify, merge, publish,
+** distribute, sublicense, and/or sell copies of the Materials, and to
+** permit persons to whom the Materials are furnished to do so, subject to
+** the following conditions:
+**
+** The above copyright notice and this permission notice shall be included
+** in all copies or substantial portions of the Materials.
+**
+** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
+*/
+
+-->
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<script type="application/javascript">
+
+window.onload = function() {
+  setup("1");
+  setup("2");
+}
+
+function setup(id) {
+  var c = document.getElementById(id);
+  var names = ["webgl", "experimental-webgl"];
+  for (var i = 0; i < names.length; ++i) {
+    gl = canvas.getContext(names[i]);
+    if (gl) {
+      break;
+    }
+  }
+  gl.clearColor(1,0,0,1);
+  gl.clear(gl.COLOR_BUFFER_BIT);
+  setTimeout(function() {
+    gl.enable(gl.SCISSOR_TEST);
+    gl.scissor(0,0,50,50);
+    gl.clearColor(0,1,0,1);
+    gl.clear(gl.COLOR_BUFFER_BIT);
+  }, 500);
+}
+</script>
+</head>
+<body>
+<canvas id="1"></canvas>
+<div style="height:4000px;">content that is tall like several articles</div>
+<canvas id="2"></canvas>
+</body>
+</html>
+