Do not render name attribute on INPUT if it is not supplied. Closes #7198. (#7199)

(cherry picked from commit 0d892c03da)

src/renderers/dom/client/wrappers/ReactDOMInput.js

@@ -237,10 +237,14 @@ var ReactDOMInput = {
     // Reference: https://bugs.chromium.org/p/chromium/issues/detail?id=608416
     // We need to temporarily unset name to avoid disrupting radio button groups.
     var name = node.name;
-    node.name = undefined;
+    if (name !== '') {
+      node.name = '';
+    }
     node.defaultChecked = !node.defaultChecked;
     node.defaultChecked = !node.defaultChecked;
-    node.name = name;
+    if (name !== '') {
+      node.name = name;
+    }
   },
 };
 

src/renderers/dom/client/wrappers/__tests__/ReactDOMInput-test.js

@@ -102,6 +102,35 @@ describe('ReactDOMInput', function() {
     expect(div.firstChild.getAttribute('defaultValue')).toBe(null);
   });
 
+  it('should render name attribute if it is supplied', function() {
+    var container = document.createElement('div');
+    var node = ReactDOM.render(<input type="text" name="name" />, container);
+    expect(node.name).toBe('name');
+    expect(container.firstChild.getAttribute('name')).toBe('name');
+  });
+
+  it('should render name attribute if it is supplied for SSR', function() {
+    var element = <input type="text" name="name" />;
+    var markup = ReactDOMServer.renderToString(element);
+    var div = document.createElement('div');
+    div.innerHTML = markup;
+    expect(div.firstChild.getAttribute('name')).toBe('name');
+  });
+
+  it('should not render name attribute if it is not supplied', function() {
+    var container = document.createElement('div');
+    ReactDOM.render(<input type="text" />, container);
+    expect(container.firstChild.getAttribute('name')).toBe(null);
+  });
+
+  it('should not render name attribute if it is not supplied for SSR', function() {
+    var element = <input type="text" />;
+    var markup = ReactDOMServer.renderToString(element);
+    var div = document.createElement('div');
+    div.innerHTML = markup;
+    expect(div.firstChild.getAttribute('name')).toBe(null);
+  });
+
   it('should display "foobar" for `defaultValue` of `objToString`', function() {
     var objToString = {
       toString: function() {
@@ -672,7 +701,7 @@ describe('ReactDOMInput', function() {
         value="value"
         defaultChecked={true}
         checked={false}
-        onChange={() => null} 
+        onChange={() => null}
       />, container);
     expect(console.error.calls.count()).toBe(0);
   });
@@ -718,10 +747,8 @@ describe('ReactDOMInput', function() {
       'set type',
       'set value',
       'set value',
-      'set name',
       'set checked',
       'set checked',
-      'set name',
     ]);
   });