While I believe this, you might want to add a way for the developer to disable certain GET variables or pages from being sent. I doubt sending everything helps Stripe detect fraud.
You can already selectively include it on pages. And it doesn't make sense to me to "disable certain [parts of the url]".
Some websites send sensitive or identifying data in their GET variables. I personally have analytics data on my pages I don't want to give to Stripe for no reason and definitely does not help them track fraud.