Merge branch 'MaaikeB-affix-in-ie10'

Author: taion

src/AffixMixin.js

@@ -38,7 +38,7 @@ const AffixMixin = {
     }
 
     DOMNode = React.findDOMNode(this);
-    scrollHeight = document.documentElement.offsetHeight;
+    scrollHeight = domUtils.getDocumentHeight();
     scrollTop = window.pageYOffset;
     position = domUtils.getOffset(DOMNode);
 

src/utils/domUtils.js

@@ -78,6 +78,15 @@ function getOffset(DOMNode) {
   };
 }
 
+/**
+ * Get the height of the document
+ *
+ * @returns {documentHeight: number}
+ */
+function getDocumentHeight() {
+  return Math.max(document.documentElement.offsetHeight, document.height, document.body.scrollHeight, document.body.offsetHeight);
+}
+
 /**
  * Get elements position
  *
@@ -205,6 +214,7 @@ export default {
   ownerDocument,
   getComputedStyles,
   getOffset,
+  getDocumentHeight,
   getPosition,
   getSize,
   activeElement: getActiveElement,