Wordpress in subdirectory nginx 404 permalinks - php

Question

I am trying to add wordpress in subdirectory /blog with react application running in root. Wordpress have been installed successfully and working correctly with simple permalinks:
https://foo.com/blog/?p=8
https://foo.com/blog/?page_id=8
but returns 404 error when using pretty permalinks like:
https://foo.com/blog/postname/
nginx conf:
server {
listen 80 default_server;
listen [::]:80 default_server ipv6only=on;
server_name foo.com;
return 301 https://$server_name$request_uri;
}
# HTTPS server
server {
listen 443;
server_name foo.com;
root /data/www/foo;
index index.html index.htm;
ssl on;
ssl_certificate /etc/nginx/nginx.crt;
ssl_certificate_key /etc/nginx/nginx.key;
ssl_session_timeout 5m;
ssl_protocols SSLv3 TLSv1 TLSv1.1 TLSv1.2;
ssl_ciphers "HIGH:!aNULL:!MD5 or HIGH:!aNULL:!MD5:!3DES";
ssl_prefer_server_ciphers on;
location / {
proxy_pass https://127.0.0.1:8443;
}
location /learn {
root /data/www/foo;
index index.php index.html index.htm
try_files $uri $uri/ /learn/index.php?$args;
}
location ~ /blog/.+\.(jpg|jpeg|gif|css|png|js|ico|xml)$ {
root /data/www/foo;
}
location ~ /blog/.+\.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;
How can I fix this?
Thanks!
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