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diff --git a/testing/web-platform/tests/html/editing/dnd/the-dropzone-attribute/dropzone_attribute.html b/testing/web-platform/tests/html/editing/dnd/the-dropzone-attribute/dropzone_attribute.html
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index 000000000..feb73eccf
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+++ b/testing/web-platform/tests/html/editing/dnd/the-dropzone-attribute/dropzone_attribute.html
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+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset='utf-8'>
+    <title>HTML Test: dropzone_attribute</title>
+    <link rel='author' title='Intel' href='http://www.intel.com'>
+    <link rel='help' href='https://html.spec.whatwg.org/multipage/#the-dropzone-attribute'>
+    <meta name="flags" content="may">
+    <script src='/resources/testharness.js'></script>
+    <script src='/resources/testharnessreport.js'></script>
+  </head>
+
+  <body>
+    <div id='log'> </div>
+
+    <script>
+        var drop_element;
+
+        setup(function() { drop_element = document.createElement('div'); });
+
+        test(function() {
+          //Empty values for elements
+          drop_element.dropzone = '';
+          assert_not_equals(drop_element.dropzone, undefined, 'div.dropzone should not be undefined if it\'s been set');
+        }, 'div.dropzone should not be undefined if it\'s been set');
+
+        test(function() {
+          drop_element.dropzone = null;
+          assert_not_equals(drop_element.dropzone, null,  'div.dropzone should not be null');
+        }, 'div.dropzone should not be null');
+
+        test(function() {
+          //The dropzone IDL attribute must reflect the content attribute of the same name.
+          drop_element.setAttribute('dropzone', 'copy file:image/png file:image/gif file:image/jpeg');
+          assert_equals(drop_element.dropzone, 'copy file:image/png file:image/gif file:image/jpeg', 'div dropzone idl attribute must reflect the content attribute of the same name');
+        }, 'div dropzone idl attribute must reflect the content attribute of the same name');
+
+         test(function() {
+          //The dropzone content attribute is set to the literal value when the idl attribute value is set.
+          drop_element.dropzone = 'copy file:image/png file:image/gif file:image/jpeg';
+          assert_equals(drop_element.getAttribute('dropzone'), 'copy file:image/png file:image/gif file:image/jpeg', 'div dropzone content attribute is set to the literal value');
+        }, 'div dropzone content attribute is set to the literal value');
+    </script>
+  </body>
+</html>