127.0.0.1 - - [21/Apr/2017:18:30:38 +0000] "POST /upload/10507.wav HTTP/1.1" 401 39

10.8.21.23 - - [21/Apr/2017:18:30:27 +0000] "POST /upload/10507.wav HTTP/1.1" 502 232 14030

[Fri Apr 21 18:30:39.770715 2017] [proxy:error] [pid 33652:tid 120896] (OS 10053)An established connection was aborted by the software in your host machine.  : [client 10.8.21.23:62863] AH01084: pass request body failed to 127.0.0.1:8888 (127.0.0.1)
[Fri Apr 21 18:30:39.770715 2017] [proxy_http:error] [pid 33652:tid 120896] [client 10.8.21.23:62863] AH01097: pass request body failed to 127.0.0.1:8888 (127.0.0.1) from 10.8.21.23 ()