NGX_HTTP_UPSTREAM_FT_INVALID_HEADER  176 http/modules/ngx_http_fastcgi_module.c     { ngx_string("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER },
NGX_HTTP_UPSTREAM_FT_INVALID_HEADER   45 http/modules/ngx_http_memcached_module.c     { ngx_string("invalid_response"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER },
NGX_HTTP_UPSTREAM_FT_INVALID_HEADER  148 http/modules/ngx_http_proxy_module.c     { ngx_string("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER },
NGX_HTTP_UPSTREAM_FT_INVALID_HEADER   63 http/modules/ngx_http_scgi_module.c     { ngx_string("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER },
NGX_HTTP_UPSTREAM_FT_INVALID_HEADER   76 http/modules/ngx_http_uwsgi_module.c     { ngx_string("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER },
NGX_HTTP_UPSTREAM_FT_INVALID_HEADER 1554 http/ngx_http_upstream.c                                        NGX_HTTP_UPSTREAM_FT_INVALID_HEADER);
NGX_HTTP_UPSTREAM_FT_INVALID_HEADER 1565 http/ngx_http_upstream.c         ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_INVALID_HEADER);