[Bug] Rescue error on JWT.encode (#201)

app/controllers/widgets_controller.rb

@@ -43,9 +43,13 @@ class WidgetsController < ActionController::Base
     return @cookie_params if @cookie_params.present?
 
     if conversation_token.present?
+      begin
         @cookie_params = JWT.decode(
           conversation_token, secret_key, true, algorithm: 'HS256'
         ).first.symbolize_keys
+      rescue StandardError
+        @cookie_params = {}
+      end
       return @cookie_params
     end
     {}