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diff --git a/testing/web-platform/tests/custom-elements/v0/registering/definition-construction-algorithm-svg-namespace-name-is-null.html b/testing/web-platform/tests/custom-elements/v0/registering/definition-construction-algorithm-svg-namespace-name-is-null.html
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index 000000000..dd6b61059
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+++ b/testing/web-platform/tests/custom-elements/v0/registering/definition-construction-algorithm-svg-namespace-name-is-null.html
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+<!DOCTYPE html>
+<html>
+<head>
+<title>If namespace is SVG namespace and name is null then error must be thrown</title>
+<meta name="author" title="Vasiliy Degtyarev" href="mailto:vasya@unipro.ru">
+<meta name="author" title="Sergey G. Grekhov" href="mailto:sgrekhov@unipro.ru">
+<meta name="assert" content="If namespace is SVG namespace and name is null then error must be thrown">
+<link rel="help" href="http://www.w3.org/TR/custom-elements/#registering-custom-elements">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="../testcommon.js"></script>
+</head>
+<body>
+<div id="log"></div>
+<script>
+test(function() {
+    var doc = newHTMLDocument();
+    var proto = Object.create(SVGElement.prototype);
+    assert_throws('NotSupportedError', function() {
+        doc.registerElement('x-svg-a', {prototype: proto});
+    }, 'Exception should be thrown in case of attempt to register ' +
+        'a custom element with SVG namespace and name is not specified');
+}, 'Error should be thrown if namespace is SVG and local name is not specified');
+
+
+test(function() {
+    var doc = newHTMLDocument();
+    var proto = Object.create(SVGElement.prototype);
+    assert_throws('NotSupportedError', function() {
+        doc.registerElement('x-svg-b', {prototype: proto, extends: null});
+    }, 'Exception should be thrown in case of attempt to register ' +
+        'a custom element with SVG namespace and name is null');
+}, 'Error should be thrown if namespace is SVG and local name is null');
+</script>
+</body>
+</html>