NGX_HTTP_UPSTREAM_IGN_XA_CHARSET  426 src/http/ngx_http_upstream.c     { ngx_string("X-Accel-Charset"), NGX_HTTP_UPSTREAM_IGN_XA_CHARSET },
NGX_HTTP_UPSTREAM_IGN_XA_CHARSET 4434 src/http/ngx_http_upstream.c     if (r->upstream->conf->ignore_headers & NGX_HTTP_UPSTREAM_IGN_XA_CHARSET) {