power bi report run javascript on report load

We are running report server on premise. Our reports are accessed directly from report server and are not embedded in an application. We want the reports to open by default in full screen mode or with rs:Embed=True querystring. Is it possible to run a javascript on report open or report load? We understand that there is a javascript api for power bi service that can be used if you are embedding reports in your applications but, in our case, the requirement is to open the report directly from the report server and not embed it in an application.