diff --git a/src/renderers/dom/client/ReactDOMSelection.js b/src/renderers/dom/client/ReactDOMSelection.js
index aff9e894bba..cbce488ebef 100644
--- a/src/renderers/dom/client/ReactDOMSelection.js
+++ b/src/renderers/dom/client/ReactDOMSelection.js
@@ -40,7 +40,7 @@ function isCollapsed(anchorNode, anchorOffset, focusNode, focusOffset) {
  * @return {object}
  */
 function getIEOffsets(node) {
-  var selection = document.selection;
+  var selection = node.ownerDocument.selection;
   var selectedRange = selection.createRange();
   var selectedLength = selectedRange.text.length;
 
@@ -63,7 +63,8 @@ function getIEOffsets(node) {
  * @return {?object}
  */
 function getModernOffsets(node) {
-  var selection = window.getSelection && window.getSelection();
+  var win = node.ownerDocument.defaultView;
+  var selection = win.getSelection && win.getSelection();
 
   if (!selection || selection.rangeCount === 0) {
     return null;
@@ -119,7 +120,7 @@ function getModernOffsets(node) {
   var end = start + rangeLength;
 
   // Detect whether the selection is backward.
-  var detectionRange = document.createRange();
+  var detectionRange = node.ownerDocument.createRange();
   detectionRange.setStart(anchorNode, anchorOffset);
   detectionRange.setEnd(focusNode, focusOffset);
   var isBackward = detectionRange.collapsed;
@@ -135,7 +136,7 @@ function getModernOffsets(node) {
  * @param {object} offsets
  */
 function setIEOffsets(node, offsets) {
-  var range = document.selection.createRange().duplicate();
+  var range = node.ownerDocument.selection.createRange().duplicate();
   var start, end;
 
   if (offsets.end === undefined) {
@@ -169,11 +170,12 @@ function setIEOffsets(node, offsets) {
  * @param {object} offsets
  */
 function setModernOffsets(node, offsets) {
-  if (!window.getSelection) {
+  var win = node.ownerDocument.defaultView;
+  if (!win.getSelection) {
     return;
   }
 
-  var selection = window.getSelection();
+  var selection = win.getSelection();
   var length = node[getTextContentAccessor()].length;
   var start = Math.min(offsets.start, length);
   var end = offsets.end === undefined ?
@@ -191,7 +193,7 @@ function setModernOffsets(node, offsets) {
   var endMarker = getNodeForCharacterOffset(node, end);
 
   if (startMarker && endMarker) {
-    var range = document.createRange();
+    var range = node.ownerDocument.createRange();
     range.setStart(startMarker.node, startMarker.offset);
     selection.removeAllRanges();
 
diff --git a/src/renderers/dom/client/ReactInputSelection.js b/src/renderers/dom/client/ReactInputSelection.js
index 46e6931a6db..99e96b2c715 100644
--- a/src/renderers/dom/client/ReactInputSelection.js
+++ b/src/renderers/dom/client/ReactInputSelection.js
@@ -18,7 +18,21 @@ var focusNode = require('focusNode');
 var getActiveElement = require('getActiveElement');
 
 function isInDocument(node) {
-  return containsNode(document.documentElement, node);
+  return containsNode(node.ownerDocument.documentElement, node);
+}
+
+function getFocusedElement() {
+  var win = window;
+  var focusedElem = getActiveElement();
+  while (focusedElem instanceof win.HTMLIFrameElement) {
+    try {
+      win = focusedElem.contentDocument.defaultView;
+    } catch (e) {
+      return focusedElem;
+    }
+    focusedElem = getActiveElement(win.document);
+  }
+  return focusedElem;
 }
 
 /**
@@ -39,7 +53,7 @@ var ReactInputSelection = {
   },
 
   getSelectionInformation: function() {
-    var focusedElem = getActiveElement();
+    var focusedElem = getFocusedElement();
     return {
       focusedElem: focusedElem,
       selectionRange:
@@ -55,7 +69,7 @@ var ReactInputSelection = {
    * nodes and place them back in, resulting in focus being lost.
    */
   restoreSelection: function(priorSelectionInformation) {
-    var curFocusedElem = getActiveElement();
+    var curFocusedElem = getFocusedElement();
     var priorFocusedElem = priorSelectionInformation.focusedElem;
     var priorSelectionRange = priorSelectionInformation.selectionRange;
     if (curFocusedElem !== priorFocusedElem &&
@@ -85,10 +99,10 @@ var ReactInputSelection = {
         start: input.selectionStart,
         end: input.selectionEnd,
       };
-    } else if (document.selection &&
+    } else if (input.ownerDocument.selection &&
         (input.nodeName && input.nodeName.toLowerCase() === 'input')) {
       // IE8 input.
-      var range = document.selection.createRange();
+      var range = input.ownerDocument.selection.createRange();
       // There can only be one selection per document in IE, so it must
       // be in our element.
       if (range.parentElement() === input) {
@@ -106,8 +120,8 @@ var ReactInputSelection = {
   },
 
   /**
-   * @setSelection: Sets the selection bounds of a textarea or input and focuses
-   * the input.
+   * @setSelection: Sets the selection bounds of a textarea, input or
+   * contentEditable node.
    * -@input     Set selection bounds of this input or textarea
    * -@offsets   Object of same form that is returned from get*
    */
diff --git a/src/renderers/dom/client/__tests__/ReactInputSelection-test.js b/src/renderers/dom/client/__tests__/ReactInputSelection-test.js
new file mode 100644
index 00000000000..4dc53b7c13d
--- /dev/null
+++ b/src/renderers/dom/client/__tests__/ReactInputSelection-test.js
@@ -0,0 +1,177 @@
+/**
+ * Copyright 2015-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @emails react-core
+ */
+
+'use strict';
+
+describe('ReactInputSelection', () => {
+  var React;
+  var ReactDOM;
+  var ReactTestUtils;
+  var ReactInputSelection;
+  var textValue = 'the text contents';
+  var createAndMountElement = (type, props, children) => {
+    var element = React.createElement(type, props, children);
+    var instance = ReactTestUtils.renderIntoDocument(element);
+    return ReactDOM.findDOMNode(instance);
+  };
+
+  beforeEach(() => {
+    jest.resetModuleRegistry();
+
+    React = require('React');
+    ReactDOM = require('ReactDOM');
+    ReactTestUtils = require('ReactTestUtils');
+    ReactInputSelection = require('ReactInputSelection');
+  });
+
+  describe('hasSelectionCapabilities', () => {
+    it('returns true for textareas', () => {
+      var textarea = document.createElement('textarea');
+      expect(ReactInputSelection.hasSelectionCapabilities(textarea)).toBe(true);
+    });
+
+    it('returns true for text inputs', () => {
+      var inputText = document.createElement('input');
+      var inputReadOnly = document.createElement('input');
+      inputReadOnly.readOnly = 'true';
+      var inputNumber = document.createElement('input');
+      inputNumber.type = 'number';
+      var inputEmail = document.createElement('input');
+      inputEmail.type = 'email';
+      var inputPassword = document.createElement('input');
+      inputPassword.type = 'password';
+      var inputHidden = document.createElement('input');
+      inputHidden.type = 'hidden';
+
+      expect(ReactInputSelection.hasSelectionCapabilities(inputText)).toBe(true);
+      expect(ReactInputSelection.hasSelectionCapabilities(inputReadOnly)).toBe(true);
+      expect(ReactInputSelection.hasSelectionCapabilities(inputNumber)).toBe(false);
+      expect(ReactInputSelection.hasSelectionCapabilities(inputEmail)).toBe(false);
+      expect(ReactInputSelection.hasSelectionCapabilities(inputPassword)).toBe(false);
+      expect(ReactInputSelection.hasSelectionCapabilities(inputHidden)).toBe(false);
+    });
+
+    it('returns true for contentEditable elements', () => {
+      var div = document.createElement('div');
+      div.contentEditable = 'true';
+      var body = document.createElement('body');
+      body.contentEditable = 'true';
+      var input = document.createElement('input');
+      input.contentEditable = 'true';
+      var select = document.createElement('select');
+      select.contentEditable = 'true';
+
+      expect(ReactInputSelection.hasSelectionCapabilities(div)).toBe(true);
+      expect(ReactInputSelection.hasSelectionCapabilities(body)).toBe(true);
+      expect(ReactInputSelection.hasSelectionCapabilities(input)).toBe(true);
+      expect(ReactInputSelection.hasSelectionCapabilities(select)).toBe(true);
+    });
+
+    it('returns false for any other type of HTMLElement', () => {
+      var select = document.createElement('select');
+      var iframe = document.createElement('iframe');
+
+      expect(ReactInputSelection.hasSelectionCapabilities(select)).toBe(false);
+      expect(ReactInputSelection.hasSelectionCapabilities(iframe)).toBe(false);
+    });
+  });
+
+  describe('getSelection', () => {
+    it('gets selection offsets from a textarea or input', () => {
+      var input = createAndMountElement('input', {defaultValue: textValue});
+      input.setSelectionRange(6, 11);
+      expect(ReactInputSelection.getSelection(input)).toEqual({start: 6, end: 11});
+
+      var textarea = createAndMountElement('textarea', {defaultValue: textValue});
+      textarea.setSelectionRange(6, 11);
+      expect(ReactInputSelection.getSelection(textarea)).toEqual({start: 6, end: 11});
+    });
+
+    it('gets selection offsets from a contentEditable element', () => {
+      var node = createAndMountElement('div', null, textValue);
+      node.selectionStart = 6;
+      node.selectionEnd = 11;
+      expect(ReactInputSelection.getSelection(node)).toEqual({start: 6, end: 11});
+    });
+
+    it('gets selection offsets as start: 0, end: 0 if no selection', () => {
+      var node = createAndMountElement('select');
+      expect(ReactInputSelection.getSelection(node)).toEqual({start: 0, end: 0});
+    });
+
+    it('gets selection on inputs in iframes', () => {
+      var iframe = document.createElement('iframe');
+      document.body.appendChild(iframe);
+      const input = document.createElement('input');
+      input.value = textValue;
+      iframe.contentDocument.body.appendChild(input);
+      input.select();
+      expect(input.selectionStart).toEqual(0);
+      expect(input.selectionEnd).toEqual(textValue.length);
+
+      document.body.removeChild(iframe);
+    });
+  });
+
+  describe('setSelection', () => {
+    it('sets selection offsets on textareas and inputs', () => {
+      var input = createAndMountElement('input', {defaultValue: textValue});
+      ReactInputSelection.setSelection(input, {start: 1, end: 10});
+      expect(input.selectionStart).toEqual(1);
+      expect(input.selectionEnd).toEqual(10);
+
+      var textarea = createAndMountElement('textarea', {defaultValue: textValue});
+      ReactInputSelection.setSelection(textarea, {start: 1, end: 10});
+      expect(textarea.selectionStart).toEqual(1);
+      expect(textarea.selectionEnd).toEqual(10);
+    });
+
+    it('sets selection on inputs in iframes', () => {
+      var iframe = document.createElement('iframe');
+      document.body.appendChild(iframe);
+      const input = document.createElement('input');
+      input.value = textValue;
+      iframe.contentDocument.body.appendChild(input);
+      ReactInputSelection.setSelection(input, {start: 1, end: 10});
+      expect(input.selectionStart).toEqual(1);
+      expect(input.selectionEnd).toEqual(10);
+
+      document.body.removeChild(iframe);
+    });
+  });
+
+  describe('getSelectionInformation/restoreSelection', () => {
+    it('gets and restores selection for inputs that get remounted', () => {
+      var input = document.createElement('input');
+      input.value = textValue;
+      document.body.appendChild(input);
+      input.focus();
+      input.selectionStart = 1;
+      input.selectionEnd = 10;
+      var selectionInfo = ReactInputSelection.getSelectionInformation();
+      expect(selectionInfo.focusedElem).toBe(input);
+      expect(selectionInfo.selectionRange).toEqual({start: 1, end: 10});
+      expect(document.activeElement).toBe(input);
+      input.setSelectionRange(0, 0);
+      document.body.removeChild(input);
+      expect(document.activeElement).not.toBe(input);
+      expect(input.selectionStart).not.toBe(1);
+      expect(input.selectionEnd).not.toBe(10);
+      document.body.appendChild(input);
+      ReactInputSelection.restoreSelection(selectionInfo);
+      expect(document.activeElement).toBe(input);
+      expect(input.selectionStart).toBe(1);
+      expect(input.selectionEnd).toBe(10);
+
+      document.body.removeChild(input);
+    });
+  });
+});
diff --git a/src/renderers/dom/client/eventPlugins/SelectEventPlugin.js b/src/renderers/dom/client/eventPlugins/SelectEventPlugin.js
index a4467c72a28..a73c183d302 100644
--- a/src/renderers/dom/client/eventPlugins/SelectEventPlugin.js
+++ b/src/renderers/dom/client/eventPlugins/SelectEventPlugin.js
@@ -71,16 +71,19 @@ function getSelection(node) {
       start: node.selectionStart,
       end: node.selectionEnd,
     };
-  } else if (window.getSelection) {
-    var selection = window.getSelection();
+  }
+  var doc = node.ownerDocument || node.document || node;
+  var win = doc.defaultView || doc.parentWindow;
+  if (win.getSelection) {
+    var selection = win.getSelection();
     return {
       anchorNode: selection.anchorNode,
       anchorOffset: selection.anchorOffset,
       focusNode: selection.focusNode,
       focusOffset: selection.focusOffset,
     };
-  } else if (document.selection) {
-    var range = document.selection.createRange();
+  } else if (doc.selection) {
+    var range = doc.selection.createRange();
     return {
       parentElement: range.parentElement(),
       text: range.text,
@@ -94,6 +97,7 @@ function getSelection(node) {
  * Poll selection to see whether it's changed.
  *
  * @param {object} nativeEvent
+ * @param {object} nativeEventTarget
  * @return {?SyntheticEvent}
  */
 function constructSelectEvent(nativeEvent, nativeEventTarget) {
@@ -101,9 +105,10 @@ function constructSelectEvent(nativeEvent, nativeEventTarget) {
   // selection (this matches native `select` event behavior). In HTML5, select
   // fires only on input and textarea thus if there's no focused element we
   // won't dispatch.
+  var doc = nativeEventTarget.ownerDocument || nativeEventTarget.document || nativeEventTarget;
   if (mouseDown ||
       activeElement == null ||
-      activeElement !== getActiveElement()) {
+      activeElement !== getActiveElement(doc)) {
     return null;
   }