Fix wrong base URL on Redirect multiple url

[gabf3st]

Problems

I have files that are redirect multiple url.
If it is redirect less than 2 times, everything works fine.
But if it is redirect more than 2 times, redirected url since the 3rd time will be incorrect.

Root cause

base url we use was the original url (fileUrl) so at the 3rd time redirection which it should use the 2nd URL but it still use original URL.

Solution

Use url instead of fileUrl when assigning to base

[hnvn]

LGTM