How to prevent triggering a request to application on application loadField

Similar to the site settings we have on the startpage a container with web 
application fields, which we set with specific webapps to allow absolute 
field addressing from several other pages. On the startpage there is only 
the container with the application field, but this web application itself 
is not displayed on the startpage. Nevertheless when accessing the 
startpage, loadField is called for the "hidden" webapp field and there a 
request is sent to the servlet of the application. Is it possible to 
prevent triggering this request if the field is not shown really?

Benjamin Papez