prevent initialization of charts twice

Author: contactashish13

js/render-facade.js

@@ -81,6 +81,14 @@
     }
 
     $(document).ready(function(){
+        // facade loads twice in the admin area, so all charts are also loaded twice
+        // this will ensure that even if it loaded twice, it initializes all charts only once.
+        // fixed as part of the issue to add annotations.
+        if(localStorage.getItem( 'viz-facade-loaded' ) === '1'){
+            localStorage.removeItem( 'viz-facade-loaded' );
+            return;
+        }
+        localStorage.setItem( 'viz-facade-loaded', '1');
         $('body').trigger('visualizer:render:chart:start', visualizer);
         initActionsButtons(visualizer);
         registerDefaultActions();