Посторонние символы перед заголовком ответа

[Станислав]

Борис Долгов пишет:
> А какие заголовки отдает фронтэнд перед редиректом? Какой когфиг 
> сервера/location'a?
> Ясновидящие в отпуске :(
Хм. Я надеялся, что это какая-то типичная проблема. Дело не в редиректе, 
ошибка может появиться на абсолютно любой странице.

-----------------------nginx.conf---------------
user  apache apache;

worker_processes 7;
worker_rlimit_nofile 10240;

pid /var/run/nginx.pid;

error_log  /var/log/nginx/error_log  info;

events {
    worker_connections   2048;
}

http {
    include       conf/mime.types;
    default_type  application/octet-stream;
   
    client_header_timeout  1m;
    client_body_timeout    1m;
    send_timeout           1m;

    client_header_buffer_size    4k;
    large_client_header_buffers  4 8k;

    gzip off;

    output_buffers   5 64k;
    postpone_output  1460;

    sendfile         on;
    tcp_nopush       on;
    tcp_nodelay      on;

    keepalive_timeout  75 20;

    include conf/servers/www.conf;
   
    upstream  main_backend  {
      server   10.0.0.10:9000;
    }
}

-------------------www.conf--------------

server {
  listen        80;
  server_name   www.site.ru;

  client_max_body_size       10M;
  client_body_buffer_size    128k;
  client_body_temp_path      /var/home/www/var/client_body;

  root /var/home/www/www;

  log_format fastcgi_log '$remote_addr $request $status $body_bytes_sent'
    ' $http_referer $upstream_response_time $request_time $time_local 
[$host $http_user_agent]';

  log_format static_log '$remote_addr $request $status $body_bytes_sent'
    ' $http_referer - $request_time $time_local $host [$http_user_agent]';

  access_log    /var/log/nginx/www-nginx.access_log fastcgi_log;
  error_log    /var/log/nginx/www-nginx.error_log  error;
  rewrite_log off;

  set $fix_slash 0;
  if ($request_uri ~ "^[a-z0-9\-/]*[^/]$") { set $fix_slash 1; }
  if (-e $request_filename) { set $fix_slash 0; }
  if ($fix_slash) {
    rewrite ^(.*)$ $request_uri/ permanent;
  }

  location / {

    root /var/home/www/www;

    if (!-e $request_filename) {
      rewrite ^(.*)$ /main_app.php last;
    }
  }

  location ~ \.php$ {

    charset utf-8;

    fastcgi_pass 10.0.0.11:9000;

    fastcgi_connect_timeout 20;
    fastcgi_send_timeout 60;
    fastcgi_read_timeout 60;
    fastcgi_buffers 64 128k;
    fastcgi_temp_file_write_size 256k;
    fastcgi_intercept_errors on;

    fastcgi_param SCRIPT_FILENAME /var/home/www/www$fastcgi_script_name;
    fastcgi_param QUERY_STRING    $query_string;
    fastcgi_param REQUEST_METHOD  $request_method;
    fastcgi_param REMOTE_ADDR     $remote_addr;
    fastcgi_param REMOTE_PORT     $remote_port;
    fastcgi_param SERVER_PROTOCOL $server_protocol;
    fastcgi_param SERVER_ADDR     $server_addr;
    fastcgi_param SERVER_PORT     $server_port;
    fastcgi_param SERVER_NAME     $server_name;
    fastcgi_param SCRIPT_NAME     $fastcgi_script_name;
    fastcgi_param REQUEST_URI     $request_uri;
    fastcgi_param DOCUMENT_ROOT   /var/home/www/www;
    fastcgi_param CONTENT_TYPE    $content_type;
    fastcgi_param CONTENT_LENGTH  $content_length;
  }

  error_page  404  /404.html;
  error_page  500 502 503 504 /500.html;

  location ~* \.(jpg|js|jpeg|gif|png|css)$ {
    access_log /var/log/nginx/www-nginx.access_static_log static_log;
    expires      30d;
    if (!-e $request_filename) {
      return 404;
    }
  }
}