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diff --git a/testing/web-platform/tests/custom-elements/v0/instantiating/custom-element-constructor-node-document.html b/testing/web-platform/tests/custom-elements/v0/instantiating/custom-element-constructor-node-document.html
new file mode 100644
index 000000000..3112b36da
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+++ b/testing/web-platform/tests/custom-elements/v0/instantiating/custom-element-constructor-node-document.html
@@ -0,0 +1,100 @@
+<!DOCTYPE html>
+<html>
+<head>
+<title>Custom element constructor sets owner document to the document, where custom element type is registered</title>
+<meta name="author" title="Sergey G. Grekhov" href="mailto:sgrekhov@unipro.ru">
+<meta name="assert" content="Custom element constructor sets custom element node document to the document, where custom element type is registered">
+<link rel="help" href="http://www.w3.org/TR/custom-elements/#instantiating-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 GeneratedConstructor = doc.registerElement('x-a');
+    var customElement = new GeneratedConstructor();
+    assert_equals(customElement.ownerDocument, doc,
+        'Custom element owner document should be the document, where custom element ' +
+        'type is registered');
+}, 'Custom element constructor sets owner document to the document, where custom element ' +
+    'type is registered');
+
+
+test(function() {
+    var doc = newHTMLDocument();
+    HTML5_ELEMENTS.forEach(function(tagName) {
+        var obj = doc.createElement(tagName);
+        var name = 'x-b-' + tagName;
+        var proto = Object.create(obj.constructor.prototype);
+        var GeneratedConstructor = doc.registerElement(name, {
+            prototype: proto,
+            extends: tagName
+        });
+        var customElement = new GeneratedConstructor();
+
+        assert_equals(customElement.ownerDocument, doc,
+            'Custom element owner document should be the document, where custom element ' +
+            'type is registered');
+    });
+}, 'Custom element constructor sets owner document to the document, where custom element ' +
+    'type is registered. Test constructor of extended HTML element');
+
+
+test(function() {
+    var doc = newHTMLDocument();
+    var sharedRegistryDocument = doc.implementation.createHTMLDocument('Document 2');
+
+    var name = 'x-c';
+    var GeneratedConstructor = doc.registerElement(name);
+    var customElement = new GeneratedConstructor();
+    assert_equals(customElement.ownerDocument, doc,
+        'Custom element owner document should be the document, where custom element ' +
+        'type is registered');
+
+    var name2 = 'x-d';
+    var GeneratedConstructor2 = sharedRegistryDocument.registerElement(name2);
+    var customElement2 = new GeneratedConstructor2();
+    assert_equals(customElement2.ownerDocument, sharedRegistryDocument,
+        'Custom element owner document should be the document, where custom element ' +
+        'type is registered');
+}, 'Custom element constructor sets owner document to the document, where custom element ' +
+    'type is registered. Test different documents with shared registry');
+
+
+test(function() {
+    var doc = newHTMLDocument();
+    var sharedRegistryDocument = doc.implementation.createHTMLDocument('Document 2');
+    HTML5_ELEMENTS.forEach(function(tagName) {
+        var obj = doc.createElement(tagName);
+        var name = 'x-e-' + tagName;
+        var proto = Object.create(obj.constructor.prototype);
+        var GeneratedConstructor = doc.registerElement(name, {
+            prototype: proto,
+            extends: tagName
+        });
+        var customElement = new GeneratedConstructor();
+        assert_equals(customElement.ownerDocument, doc,
+            'Custom element owner document should be the document, where custom element ' +
+            'type is registered');
+
+        var obj2 = sharedRegistryDocument.createElement(tagName);
+        var name2 = 'x-f-' + tagName;
+        var proto2 = Object.create(obj2.constructor.prototype);
+        var GeneratedConstructor2 = sharedRegistryDocument.registerElement(name2, {
+            prototype: proto2,
+            extends: tagName
+        });
+        var customElement2 = new GeneratedConstructor2();
+        assert_equals(customElement2.ownerDocument, sharedRegistryDocument,
+            'Custom element owner document should be the document, where custom element ' +
+            'type is registered');
+    });
+}, 'Custom element constructor sets owner document to the document, where custom element ' +
+    'type is registered. Test constructor of extended HTML element for different documents ' +
+    'with shared registry');
+</script>
+</body>
+</html>