I’m not sure how you can use the internet to distribute your content and claim copyright over how the user consumes the content. You’re distributing code to a user. The user can interact with that code however they see fit via their browser. That is the nature of the internet. Anything else (I’m looking at you Washington Post Subscription Runtime) is trying to have things both ways.

Just because a content owner copyrights the content does not mean they can control the user’s environment once the content has been provided to the user - unless of course you own that too (cough Kindle cough). Thank God we still have options for web browsers.