<IfModule mod_rewrite.c>
  RewriteEngine On
  RewriteCond %{REQUEST_URI} ^/socket.io/ [NC]
  RewriteRule ^(.*)$ - [L]

  RewriteCond %{REQUEST_URI} !^/backend-*
  RewriteCond %{REQUEST_URI} !^/public/
  RewriteRule ^(.*)$ /public/$1 [L,QSA]
</IfModule>
<IfModule mod_security.c>
  SecFilterEngine Off
  SecFilterScanPOST Off
</IfModule> 