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diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/more/functions/uniformi.html b/dom/canvas/test/webgl-conf/checkout/conformance/more/functions/uniformi.html
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+++ b/dom/canvas/test/webgl-conf/checkout/conformance/more/functions/uniformi.html
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+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<!--
+Copyright (c) 2019 The Khronos Group Inc.
+Use of this source code is governed by an MIT-style license that can be
+found in the LICENSE.txt file.
+-->
+<link rel="stylesheet" type="text/css" href="../unit.css" />
+<script type="application/javascript" src="../unit.js"></script>
+<script type="application/javascript" src="../util.js"></script>
+<script type="application/javascript">
+
+Tests.startUnit = function () {
+  var canvas = document.getElementById('gl');
+  var gl = wrapGLContext(getGLContext(canvas));
+  return [gl];
+}
+
+Tests.testUniformi = function(gl) {
+  var sh = new Filter(gl, 'foobar-vert', 'foobar-frag');
+  sh.apply(function(f){
+    var foo = f.uniform('foo');
+    var bar = f.uniform('bar');
+    gl.uniform4iv(foo, [1,2,3,4]);
+    gl.uniform1iv(bar, [2]);
+  });
+  var d = new Uint8Array(4);
+  gl.readPixels(0,0,1,1,gl.RGBA, gl.UNSIGNED_BYTE, d);
+  assertEquals([1,2,3,8], [d[0], d[1], d[2], d[3]]);
+  sh.apply(function(f){
+    var foo = f.uniform('foo');
+    var bar = f.uniform('bar');
+    gl.uniform4i(foo, 2,2,3,4);
+    gl.uniform1i(bar, 3);
+  });
+  gl.readPixels(0,0,1,1,gl.RGBA, gl.UNSIGNED_BYTE, d);
+  assertEquals([2,2,3,12], [d[0], d[1], d[2], d[3]]);
+  sh.destroy();
+}
+
+Tests.endUnit = function(gl) {
+}
+
+</script>
+<script id="foobar-vert" type="x-shader/x-vertex">
+attribute vec3 Vertex;
+attribute vec2 Tex;
+
+uniform int bar;
+
+varying vec4 texCoord0;
+void main()
+{
+    texCoord0 = vec4(Tex.s, 1.0-Tex.t, float(bar), 0.0);
+    gl_Position = vec4(Vertex, 1.0);
+}
+</script>
+<script id="foobar-frag" type="x-shader/x-fragment">
+precision mediump float;
+
+uniform ivec4 foo;
+
+varying vec4 texCoord0;
+void main()
+{
+    gl_FragColor = vec4(float(foo.r)/256.0, float(foo.g)/256.0, float(foo.b)/256.0, float(foo.a)*texCoord0.z/256.0);
+}
+</script>
+<style>canvas{ position:absolute; }</style>
+</head><body>
+<canvas id="gl" width="16" height="16"></canvas>
+</body></html>