diff --git a/src/dom-to-image-more.js b/src/dom-to-image-more.js
index 0e4bc361..65428000 100644
--- a/src/dom-to-image-more.js
+++ b/src/dom-to-image-more.js
@@ -1,4 +1,4 @@
-(function(global) {
+(function(window) {
     'use strict';
 
     var util = newUtil();
@@ -35,7 +35,7 @@
     if (typeof exports === "object" && typeof module === "object")
         module.exports = domtoimage;
     else
-        global.domtoimage = domtoimage;
+        window.domtoimage = domtoimage;
 
     /**
      * @param {Node} node - The DOM Node object to render
@@ -261,7 +261,7 @@
                 });
 
             function cloneStyle() {
-                copyStyle(window.getComputedStyle(original), clone.style);
+                copyStyle(getUserComputedStyle(original, root), clone.style);
 
                 function copyFont(source, target) {
                     target.font = source.font;
@@ -842,4 +842,29 @@
             }
         }
     }
+
+    function getUserComputedStyle(element, root) {
+        var computedStyles = window.getComputedStyle(element);
+        var inlineStyles = element.style;
+
+        for (var i = 0; i < computedStyles.length; i++) {
+            var key = computedStyles[i];
+            var value = computedStyles.getPropertyValue(key);
+            var inlineValue = inlineStyles.getPropertyValue(key);
+
+            if (!inlineValue.length) {
+                inlineStyles.setProperty(key, root ? 'initial' : 'unset');
+
+                var initialValue = computedStyles.getPropertyValue(key);
+
+                if (initialValue !== value) {
+                    inlineStyles.setProperty(key, value);
+                } else {
+                    inlineStyles.removeProperty(key);
+                }
+            }
+        }
+
+        return inlineStyles;
+    }
 })(this);