Your example would always set the counter to 1 and not increment it. From what I understood you would like to set the counter to "current value" + 1. Unfortunately there is no API at the moment to retrieve the current value. Task for the next version. Thanks for the idea!

As a side note this would also trigger a navigation away from your site not something you probably want. You should be doing this behind the scenes with JS.

You could look into https://countapi.xyz/. You won't get the displaying part but there's an API for your use case.