How can nginx reverse proxy google app engine via SPDY?

In China , government block google app engine by GFW

So , I use a nginx reverse proxy (proxy_pass) to google app engine via
https

My Site need https to keep security , so I want to know can I let nginx
proxy a https google app engine website via SPDY?

My answer would not be ‘Google is your friend’ but the even better: RTFM
:oP

Module ngx_http_proxy_module

B. R.

I write this and it success proxyed , but I want to let the proxy use
SPDY
there is no how to use SPDY in revese proxy in the document

server{
listen 443;
server_name 42btc.com;

ssl on;
ssl_certificate /etc/ssl/certs/42btc.crt;
ssl_certificate_key /etc/ssl/private/42btc.key;
#enables SSLv3/TLSv1, but not SSLv2 which is weak and should no 

longer
be used.
ssl_protocols SSLv3 TLSv1;
#Disables all weak ciphers
ssl_ciphers ALL:!aNULL:!ADH:!eNULL:!LOW:!EXP:RC4+RSA:+HIGH:+MEDIUM;

location / {

    proxy_set_header HOST xxx.appspot.com 

http://42btc-com.appspot.com
;

    proxy_set_header REMOTE-HOST $remote_addr;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

    proxy_pass  https://173.194.72.141;
}

}

server {
listen 80;
server_name www.42btc.com 42btc.com .42btc.com;
charset utf-8;
rewrite ^(.
)$ https://42btc.com$1 permanent;
}

On Mar 3, 2013, at 10:58 AM, 张沈鹏 wrote:

I write this and it success proxyed , but I want to let the proxy use SPDY
there is no how to use SPDY in revese proxy in the document

There’s not SPDY for upstream servers in nginx at this time, so you
can’t.