fixed scroll top bug in fixed layout mode

build/js/Layout.js

@@ -23,6 +23,8 @@
     layoutBoxed   : '.layout-boxed',
     mainFooter    : '.main-footer',
     mainHeader    : '.main-header',
+    mainSidebar   : '.main-sidebar',
+    slimScrollDiv : 'slimScrollDiv',
     sidebar       : '.sidebar',
     controlSidebar: '.control-sidebar',
     fixed         : '.fixed',
@@ -130,11 +132,13 @@
         // $(Selector.sidebar).slimScroll({ destroy: true }).height('auto')
 
         // Add slimscroll
+        if ($(Selector.mainSidebar).find(Selector.slimScrollDiv).length === 0) {
           $(Selector.sidebar).slimScroll({
             height: ($(window).height() - $(Selector.mainHeader).height()) + 'px'
           });
         }
       }
+    }
   };
 
   // Plugin Definition

dist/js/adminlte.js

@@ -986,6 +986,8 @@ throw new Error('AdminLTE requires jQuery')
     layoutBoxed   : '.layout-boxed',
     mainFooter    : '.main-footer',
     mainHeader    : '.main-header',
+    mainSidebar   : '.main-sidebar',
+    slimScrollDiv : 'slimScrollDiv',
     sidebar       : '.sidebar',
     controlSidebar: '.control-sidebar',
     fixed         : '.fixed',
@@ -1093,11 +1095,13 @@ throw new Error('AdminLTE requires jQuery')
         // $(Selector.sidebar).slimScroll({ destroy: true }).height('auto')
 
         // Add slimscroll
+        if ($(Selector.mainSidebar).find(Selector.slimScrollDiv).length === 0) {
           $(Selector.sidebar).slimScroll({
             height: ($(window).height() - $(Selector.mainHeader).height()) + 'px'
           });
         }
       }
+    }
   };
 
   // Plugin Definition