GET http://.../somefile net::ERR_INCOMPLETE_CHUNKED_ENCODING

[ET-CS]

Hi.
I am running Bottle 0.12.8 app behind nginx 1.6.2.
My problem is with static files served using:

@route('/vendor/<filename:path>')
def static_vendor(filename):
    return static_file(filename, root=currentpath+'/vendor')

visiting my website in Chrome 40.0.2214.115 keeps return me this error:

GET http://.../vendor/somefile.css net::ERR_INCOMPLETE_CHUNKED_ENCODING

I am running my run_server.py file using supervisord and the parameters I send to the bottle run function are:

run(host='0.0.0.0', port=7463, debug=True, reloader=True, server='gunicorn')

I've looked everywhere in the web, added several options to nginx like proxy_buffering off; but nothing works.

My nginx .conf file is:

server {
    listen 80;
    server_name ...;

    location / {
        proxy_pass http://127.0.0.1:7463/;
        proxy_connect_timeout 10s;   # instead of 60s default
        proxy_read_timeout 10s;      # instead of 60s default

        # set client headers for proxy
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Scheme $scheme;

        # I've tried those with different values but without help
        #proxy_buffering off;
        #proxy_buffers 8 8k;
        #proxy_busy_buffers_size 16k;
        #proxy_buffer_size 8k;

        # return proxy headers to client
        proxy_pass_header Server;     # pass original server header
    }
}

• I have gzip enabled at my nginx, if this have any meaning.
• Note that from the same nginx proxy server I serve static files redirecting Apache, IIS, Golang, Flask and some others. I have this error only in this website using bottle.

Maybe you can help and knows what the problem is.
Thank you in advance, and thank you for a great framework!!