Systems and methods are provided for storing, at a storage device communicatively coupled to a computer, one or more operations to be executed for a web browser. A closed shadow document object model (DOM) may be generated by a component of a web page to be displayed in the web browser using the one or more of the stored operations. The closed shadow DOM may be configured to receive sensitive data or restricted data. The component of the web page that receives the sensitive data or restricted data may instantiate an inline frame (iFrame) with a same domain as the component. The web page to receive the sensitive data or restricted data via the instantiated iFrame may be displayed on a displayed device from an input device communicatively coupled to the computer for a component of the web page.