Magento nginx ssl redirect loop error - php

Question

I have a magento 1.7 installation on nginx server.Whenever i enable SSL for front end from magento admin, the page gives an error:
Error:This webpage has a redirect loop
I have tried the following solution but no sucess:
Url : https://www.sonassi.com/knowledge-base/magento-kb/magento-https-redirect-loop/
What can be wrong in my Magento settings:
Validate session settings are off.
SSL cretificate is installed
secure and no-secure urls are defined already.
My nginx.conf is
user nginx;
worker_processes 1;
error_log /var/log/nginx/error.log;
#error_log /var/log/nginx/error.log notice;
#error_log /var/log/nginx/error.log info;
pid /var/run/nginx.pid;
events {
worker_connections 1024; }
http {
include /etc/nginx/mime.types;
default_type application/octet-stream;
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
access_log /var/log/nginx/access.log main;
sendfile on;
#tcp_nopush on;
#keepalive_timeout 0;
keepalive_timeout 65;
#gzip on;
#
# The default server
#
server {
listen 80;
server_name _;
#charset koi8-r;
#access_log logs/host.access.log main;
location / {
root /usr/share/nginx/html;
index index.html index.htm;
}
error_page 404 /404.html;
location = /404.html {
root /usr/share/nginx/html;
}
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /usr/share/nginx/html;
}
# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ \.php$ {
# proxy_pass http://127.0.0.1;
#}
# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#
#location ~ \.php$ {
# root html;
# fastcgi_pass 127.0.0.1:9000;
# fastcgi_index index.php;
# fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name;
# include fastcgi_params;
#}
# deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
#location ~ /\.ht {
# deny all;
#}
}
# Load config files from the /etc/nginx/conf.d directory
include /etc/nginx/conf.d/*.conf;
}

Answer 1

We've had a similar issue with Magento. It normally is fixed by clearing your website cookies. So I found this snippet that clears all website cookies for the domain. I placed it at the top of the main store index.php page. It has to be the first thing so it doesn't interfere with regular store SSL and Shopping functions. (e.g www.mysite.com/store/index.php)
if (isset($_SERVER['HTTP_COOKIE'])) {
$cookies = explode(';', $_SERVER['HTTP_COOKIE']);
foreach($cookies as $cookie) {
$parts = explode('=', $cookie);
$name = trim($parts[0]);
setcookie($name, '', time()-1000);
setcookie($name, '', time()-1000, '/');
}
}