Can’t get SPDY working on nginx 1.5.9

I can’t get spdy to work after reinstalling Ubuntu. I’m using nginx 1.5.9 from the nginx launchpad repository which has spdy support build in. Snippet:

root@ssl:/etc/nginx/# nginx -V
nginx version: nginx/1.5.9
TLS SNI support enabled
configure arguments: …. --with-http_spdy_module ...

My vhost is configured as followed:

server {
    listen 443 ssl spdy;
    server_name mydomain.com;

    ssl on;
    ssl_certificate     /etc/nginx/ssl/ssl-bundle.crt;
    ssl_certificate_key /etc/nginx/ssl/ssl-bundle.key;

    location / {
     root /var/www;
    }

    access_log /var/log/nginx/access.log  combined;
    error_log  /var/log/nginx/error.log debug;
}

• I already tried adding the spdy header (which shouldn’t be necessary anymore) without luck
• The website loads fine
• My https certificate is valid, all browser give me a green lock-symbol
• SPDY doesn’t work in the latest chrome or firefox

How can I further debug the spdy plugin? Any tips for further configuration?

Answer

Attribution
Source : Link , Question Author : user196611 , Answer Author : user196611