nginx loading assets but not showing for wordpress app - css

Question

I am using the following setup to run 2 applications on the same domain. If the first application returns 404 it tries the other one (wordpress on /blog).
location /blog {
root /var/www/blog;
index index.html index.htm index.php;
try_files $uri $uri/ /blog/index.php?$args;
location ~ \.php$ {
try_files $uri =404;
fastcgi_split_path_info ^(.+\.php)(/.+)$;
fastcgi_pass unix:/var/run/php5-fpm.sock;
fastcgi_index index.php;
include fastcgi_params;
}
}
location / {
# ...
proxy_intercept_errors on;
recursive_error_pages on;
error_page 404 =200 /blog/$uri;
}
Every page loads as expected and assets return 200 and the correct content.
But css and most images of those assets are not applied to the page, while a few work just fine.
The following is included:
include /etc/nginx/mime.types;
I understand that this is probably a bad configuration anyway but in my understanding it should still work.
Is there another configuration to achieve something similar?
EDITED:
The wordpress installation is located in /var/www/blog/blog/

Answer 1

I can't exactly understand the problem but I suggest you bring out that php block outside and remove blog and $args after index.php uri.
Try this one instead, let me know if this works out. :)
location /blog {
root /var/www/blog;
index index.html index.htm index.php;
try_files $uri $uri/ /index.php;
}
location ~ \.php$ {
try_files $uri =404;
fastcgi_split_path_info ^(.+\.php)(/.+)$;
fastcgi_pass unix:/var/run/php5-fpm.sock;
fastcgi_index index.php;
include fastcgi_params;
}
location / {
# ...
proxy_intercept_errors on;
recursive_error_pages on;
error_page 404 =200 /blog/$uri;
}