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diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/textures/misc/copy-tex-image-crash.html b/dom/canvas/test/webgl-conf/checkout/conformance/textures/misc/copy-tex-image-crash.html
new file mode 100644
index 0000000000..994051672a
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+++ b/dom/canvas/test/webgl-conf/checkout/conformance/textures/misc/copy-tex-image-crash.html
@@ -0,0 +1,69 @@
+<!--
+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.
+-->
+
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>copyTexImage2D should not crash</title>
+<link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<script src="../../../js/js-test-pre.js"></script>
+<script src="../../../js/webgl-test-utils.js"></script>
+</head>
+<body>
+<div id="description"></div>
+<canvas id="canvas"></canvas>
+<div id="console"></div>
+
+<script>
+"use strict";
+description("Draw into source of copyTexSubImage2D shouldn't crash: regression test for https://crbug.com/707445");
+
+var wtu = WebGLTestUtils;
+var canvas = document.getElementById("canvas");
+canvas.width = 16;
+canvas.height = 16;
+var gl = wtu.create3DContext(canvas);
+
+function runTest() {
+    // Setup/clear source texture
+    let tex1 = gl.createTexture();
+    gl.bindTexture(gl.TEXTURE_2D, tex1);
+    gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 16, 16, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
+    let fb1 = gl.createFramebuffer();
+    gl.bindFramebuffer(gl.FRAMEBUFFER, fb1);
+    gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, tex1, 0);
+    gl.clear(gl.COLOR_BUFFER_BIT);
+
+    // Setup/clear destination texture
+    let tex2 = gl.createTexture();
+    gl.bindTexture(gl.TEXTURE_2D, tex2);
+    gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 16, 16, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
+    let fb2 = gl.createFramebuffer();
+    gl.bindFramebuffer(gl.FRAMEBUFFER, fb2);
+    gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, tex2, 0);
+    gl.clear(gl.COLOR_BUFFER_BIT);
+
+    // Copy from source to destination texture
+    gl.bindFramebuffer(gl.FRAMEBUFFER, fb1);
+    gl.bindTexture(gl.TEXTURE_2D, tex2);
+    gl.copyTexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 0, 0, 16, 16, 0);
+
+    // Draw into source texture
+    gl.bindFramebuffer(gl.FRAMEBUFFER, fb2);
+    let program = wtu.setupColorQuad(gl); // Used as a trivial shader; any shader will work.
+    gl.useProgram(program);
+    gl.drawArrays(gl.TRIANGLES, 0, 3);
+}
+
+runTest();
+
+var successfullyParsed = true;
+</script>
+<script src="../../../js/js-test-post.js"></script>
+
+</body>
+</html>