feat(redirect): Removed headers after empty payload set.
#575
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Motivation
This patch removed the
content-type,content-length,content-encoding,transfer-encodingheaders in the follow_redirect::poll after the responsebodyis set to empty. This logic works well inreqwest.Currently, the follow_redirect::poll doesn't remove these
headerafter redirecting, this behavior is a violation of the HTTP/1.1 specAlso see seanmonstar/reqwest#2705
Solution
Remove the headers before making redirection