preview action, click outside panel handle

app/assets/javascripts/app/frontend/models/api/item.js

@@ -37,6 +37,7 @@ class Item {
 
   updateFromJSON(json) {
     _.merge(this, json);
+    
     if(this.created_at) {
       this.created_at = new Date(this.created_at);
       this.updated_at = new Date(this.updated_at);

app/assets/javascripts/app/frontend/models/app/extension.js

@@ -79,6 +79,7 @@ class Extension extends Item {
     super.mapContentToLocalProperties(contentObject)
     this.name = contentObject.name;
     this.url = contentObject.url;
+    this.supported_types = contentObject.supported_types;
     this.actions = contentObject.actions.map(function(action){
       return new Action(action);
     })
@@ -99,7 +100,8 @@ class Extension extends Item {
     var params = {
       name: this.name,
       url: this.url,
-      actions: this.actions
+      actions: this.actions,
+      supported_types: this.supported_types
     };
 
     _.merge(params, super.structureParams());