A consequence of forcibly setting the RoutePath to the escaped url is that the
auto routing to endpoints without terminal slashes fails (Causing #18060.) This
failure raises the possibility that forcibly setting the RoutePath causes other
unexpected behaviors too.
Therefore, instead we should simply pre-escape the URL in the process registering
handler. Then the request URL will be properly escaped for all the following calls.
Fix #17938
Fix #18060
Replace #18062
Replace #17997
Signed-off-by: Andrew Thornton <art27@cantab.net>
16adaaeaa3