Permission return boolean value

src/app/ui/persmission-handler.js

@@ -78,7 +78,7 @@ export class PermissionHandler {
               }
               this.persistPermissions()
             }
-            resolve()
+            resolve(true)
           }
         },
         {
@@ -105,6 +105,7 @@ export class PermissionHandler {
    * @returns {Promise<boolean>}
    */
   async askPermission (from, to) {
+    try {
       this.permissions = this._getFromLocal()
       if (!this.permissions[to.name]) this.permissions[to.name] = {}
       if (!this.permissions[to.name][from.name]) return this.openPermission(from, to)
@@ -118,6 +119,9 @@ export class PermissionHandler {
       return hash === from.hash
         ? true  // Allow
         : this.openPermission(from, to)  // New version of a plugin
+    } catch (err) {
+      return false
+    }
   }
 
   /**