We use a proxy through CF. Get doubles POST requests but without the necessary headers for example [16/Aug/2019:12:15:02 +0300] “POST / HTTP/1.1” 200 116 “-” “-” 0.060 0.059
[16/Aug/2019:12:15:02 +0300] “POST / HTTP/1.1” 401 116 “-” “-” 0.039 0.039
if you disable the proxying CF requests 401 disappear. What it is and how to disable unnecessary requests