diff --git a/src/button.js b/src/button.js
index 0066efb9..60eb450d 100644
--- a/src/button.js
+++ b/src/button.js
@@ -137,10 +137,10 @@ $.Button = function( options ) {
             this.tooltip;
 
         this.element.style.position = "relative";
-        if ( this.element.style[ "touch-action" ] !== undefined ) {
-            this.element.style[ "touch-action" ] = "none";
-        } else if ( this.element.style[ "-ms-touch-action" ] !== undefined ) {
-            this.element.style[ "-ms-touch-action" ] = "none";
+        if ( typeof this.element.style.touchAction !== 'undefined' ) {
+            this.element.style.touchAction = 'none';
+        } else if ( typeof this.element.style.msTouchAction !== 'undefined' ) {
+            this.element.style.msTouchAction = 'none';
         }
 
         this.imgGroup.style.position =
diff --git a/src/buttongroup.js b/src/buttongroup.js
index 51bb5642..977d616a 100644
--- a/src/buttongroup.js
+++ b/src/buttongroup.js
@@ -80,10 +80,10 @@ $.ButtonGroup = function( options ) {
         }
     }
 
-    if ( this.element.style[ "touch-action" ] !== undefined ) {
-        this.element.style[ "touch-action" ] = "none";
-    } else if ( this.element.style[ "-ms-touch-action" ] !== undefined ) {
-        this.element.style[ "-ms-touch-action" ] = "none";
+    if ( typeof this.element.style.touchAction !== 'undefined' ) {
+        this.element.style.touchAction = 'none';
+    } else if ( typeof this.element.style.msTouchAction !== 'undefined' ) {
+        this.element.style.msTouchAction = 'none';
     }
 
     /**
diff --git a/src/navigator.js b/src/navigator.js
index a3fda4f5..410f99b8 100644
--- a/src/navigator.js
+++ b/src/navigator.js
@@ -112,10 +112,10 @@ $.Navigator = function( options ){
 
     options.minPixelRatio = this.minPixelRatio = viewer.minPixelRatio;
 
-    if ( this.element.style[ "touch-action" ] !== undefined ) {
-        this.element.style[ "touch-action" ] = "none";
-    } else if ( this.element.style[ "-ms-touch-action" ] !== undefined ) {
-        this.element.style[ "-ms-touch-action" ] = "none";
+    if ( typeof this.element.style.touchAction !== 'undefined' ) {
+        this.element.style.touchAction = 'none';
+    } else if ( typeof this.element.style.msTouchAction !== 'undefined' ) {
+        this.element.style.msTouchAction = 'none';
     }
 
     this.borderWidth = 2;
diff --git a/src/referencestrip.js b/src/referencestrip.js
index c344c880..6a70c634 100644
--- a/src/referencestrip.js
+++ b/src/referencestrip.js
@@ -114,10 +114,10 @@ $.ReferenceStrip = function ( options ) {
     style.background    = '#000';
     style.position      = 'relative';
 
-    if ( this.element.style[ "touch-action" ] !== undefined ) {
-        this.element.style[ "touch-action" ] = "none";
-    } else if ( this.element.style[ "-ms-touch-action" ] !== undefined ) {
-        this.element.style[ "-ms-touch-action" ] = "none";
+    if ( typeof this.element.style.touchAction !== 'undefined' ) {
+        this.element.style.touchAction = 'none';
+    } else if ( typeof this.element.style.msTouchAction !== 'undefined' ) {
+        this.element.style.msTouchAction = 'none';
     }
 
     $.setElementOpacity( this.element, 0.8 );
@@ -195,10 +195,10 @@ $.ReferenceStrip = function ( options ) {
         element.style.cssFloat      = 'left'; //Firefox
         element.style.styleFloat    = 'left'; //IE
         element.style.padding       = '2px';
-        if ( element.style[ "touch-action" ] !== undefined ) {
-            element.style[ "touch-action" ] = "none";
-        } else if ( element.style[ "-ms-touch-action" ] !== undefined ) {
-            element.style[ "-ms-touch-action" ] = "none";
+        if ( typeof element.style.touchAction !== 'undefined' ) {
+            element.style.touchAction = 'none';
+        } else if ( typeof element.style.msTouchAction !== 'undefined' ) {
+            element.style.msTouchAction = 'none';
         }
 
         element.innerTracker = new $.MouseTracker( {
diff --git a/src/viewer.js b/src/viewer.js
index 3575db9e..6558480b 100644
--- a/src/viewer.js
+++ b/src/viewer.js
@@ -276,10 +276,10 @@ $.Viewer = function( options ) {
         style.top      = "0px";
         style.left     = "0px";
         // Disable browser default touch handling
-        if ( style[ "touch-action" ] !== undefined ) {
-            style[ "touch-action" ] = "none";
-        } else if ( style["-ms-touch-action"] !== undefined ) {
-            style[ "-ms-touch-action" ] = "none";
+        if ( typeof style.touchAction !== 'undefined' ) {
+            style.touchAction = 'none';
+        } else if ( typeof style.msTouchAction !== 'undefined' ) {
+            style.msTouchAction = 'none';
         }
     }(this.canvas.style));