Adding dynamic content to a request

Sideband connection is cool! However the example shows the connection is opened upon an HTTP_REQUEST event.

 

My goal is to create a sideband connection every 5 minutes regardless of normal traffic (i.e. not to create a sideband connection upon an incoming request. I'd like it to be created even if there are no requests. Like with a timer). Is this possible?

 

 

The second link shows how to add a JS code on the fly, which is OK. The question was how to update the JS you are about to add.

 

 

Thanks!