Regarding #21 took my first attempt at supporting it. I don't love my implementation but the URL constructor did not extract the searchParams from the origin url(maybe because one of the params is a url with search params itself?). Anyway this seems to work and does not break backwards compatibility for when a destination parameter is not present. Open to other ideas on how to fix this since I think this is more of a bandaid then fixing the core of the problem, which seems to be cookie related.
Regarding #21 took my first attempt at supporting it. I don't love my implementation but the URL constructor did not extract the searchParams from the origin url(maybe because one of the params is a url with search params itself?). Anyway this seems to work and does not break backwards compatibility for when a destination parameter is not present. Open to other ideas on how to fix this since I think this is more of a bandaid then fixing the core of the problem, which seems to be cookie related.