Redirect after POST using plug_cowboy (2.0)

I got a simple Plug post handler like this

post "/some/url" do
   # do something
   # render(something)
end

…but I would like to redirect somehow to another get handler, instead of rendering html.

How to do this using plug_cowboy 2.0?

There is no magic: you have to send HTTP 302 response:

conn
|> put_resp_header("location", url)
|> send_resp(conn.status || 302, "text/html", body)

Phoenix does the same.