Fix duplicate entry for X-Forwarded-For
header
#32039
Merged
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PR #27761 replaced
oxy.Forwarder
withhttputil.ReverseProxy
.The new forwarder based on
httputil.ReverseProxy
is appending theX-Forwarder-For
header values instead of replacing them. This PR fixes that behavior and forces the XFF header to be a single value.