Thank you Sergey, this workaround suffices for us for now.by Lynoure - Nginx Mailing List - English
> The $ssl_client_cert variable abuses header continuation, and this > doesn't work with many http servers (including nginx itself). Noticed that with spray-can. > There should be more portable way to pass client certificate to an > upstream server. Is there already, or is there one in plans? Any known workarounds? Encoding and decoding the $ssl_client_cert somehow? (I'm reby Lynoure - Nginx Mailing List - English