webm versionbs and nginx config

nginx_default.conf

@@ -1,3 +1,9 @@
+map $http_accept $webp_suffix { "~*webp"  ".webp"; }
+types {
+    # ensure the nginx supports the mime type
+    image/webp webp;
+}
+
 server {
     listen       80;
     listen  [::]:80;
@@ -10,6 +16,17 @@ server {
         index  index.html index.htm;
     }
 
+    location ~* \.(js|css|jpg|jpeg|png|gif|js|css|ico|swf)$ {
+                expires 1y;
+                etag off;
+                if_modified_since off;
+                add_header Cache-Control "public, no-transform";
+            }
+
+    location ~* \.(?:ico|cur|gif|svg|svgz|png|jpe?g)(\?.+)?$ {
+        try_files $uri$webp_suffix $uri =404;
+    }
+
     error_page  404              /404.html;
     location = /404.html {
         root   /usr/share/nginx/html;