Nginx redirection problem in odoo

Hi all:

I’m trying to print a report with product ean13 barcodes and the
barcodes are printed blank.

I think my problem is an incorrect redirection problem because I can see
correctly the barcodes if I browse to the url:

MY server response in that case is:


HTTP/1.0" 200 -

But if I try to print the report with barcodes my server response is:


HTTP/1.0" 302 -

HTTP/1.0" 302 -

My nginx configuration file:

upstream openerpweb {
server weight=1 fail_timeout=300s;

server {
listen 80;
return 301$request_uri;

server {
# server port and name
listen 443 default;
add_header Strict-Transport-Security max-age=2592000;

  # Specifies the maximum accepted body size of a client request,
  # as indicated by the request header Content-Length.
  client_max_body_size 200m;

  # ssl log files
  access_log    /var/log/nginx/openerp-access.log;
  error_log    /var/log/nginx/openerp-error.log;

  log_format main '$http_x_forwarded_for - $remote_user 

“$host” “$request” ’
'$status $body_bytes_sent “$http_referer” ’
‘“$http_user_agent” $request_time’;

  # ssl certificate files
  ssl on;
  ssl_certificate        /etc/ssl/nginx/server.crt;
  ssl_certificate_key    /etc/ssl/nginx/server.key;

  # add ssl specific settings
  keepalive_timeout    60;

  # limit ciphers
  ssl_ciphers            HIGH:!ADH:!MD5;
  ssl_protocols            SSLv3 TLSv1;
  ssl_prefer_server_ciphers    on;

  # increase proxy buffer to handle some OpenERP web requests
  proxy_buffers 16 64k;
  proxy_buffer_size 128k;

  location / {
      proxy_pass    http://openerpweb;
      # force timeouts if the backend dies
      proxy_next_upstream error timeout invalid_header http_500

http_502 http_503;

      # set headers
      proxy_set_header Host $host;
      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header X-Forward-For $proxy_add_x_forwarded_for;

              # set timeouts
              proxy_connect_timeout       600;
              proxy_send_timeout          600;
              proxy_read_timeout          600;
              send_timeout                600;

      # Let the OpenERP web service know that we're using HTTPS,

# it will generate URL using http:// and not https://
proxy_set_header X-Forwarded-Proto https;

      # by default, do not forward anything
      proxy_redirect off;

  # cache some static data in memory for 60mins.
  # under heavy load this should relieve stress on the OpenERP web

interface a bit.
location ~* /web/static/ {
proxy_cache_valid 200 60m;
proxy_buffering on;
expires 864000;
proxy_pass http://openerpweb;


Any idea?

Thanks a lot.

Atentament, cubells.