Access denied when connecting to Liferay DL through WebDAV

Note: please note that Liferay has renamed its Liferay Experience Could offerings to Liferay SaaS (formerly LXC) and Liferay PaaS (formerly LXC-SM).

Issue

• An 'Access Denied' or similar related error is shown when you try to connect to Liferay's Document Library from your Operating System through WebDAV functionality.

Environment

• Liferay PaaS
• Basic Authorization enabled at Webserver level.

Resolution

• In order to make WebDAV work in Liferay PaaS, you need to disable Basic Auth in Nginx. This Basic Auth is only needed at Liferay service level. 
• You can do so by simply removing the related lines in your webserver/configs/{env}/conf.d/liferay.conf file:

location / {
  # auth_basic "Authentication Required";
  # auth_basic_user_file /var/www/html/.htpasswd;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header X-Forwarded-Proto $http_x_forwarded_proto;
    proxy_set_header X-Forwarded-Port $http_x_forwarded_port;
    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $http_x_forwarded_for;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection $http_connection;
    proxy_hide_header liferay-portal;
    proxy_pass http://upstream_server;
    proxy_http_version 1.1;
    proxy_intercept_errors on;
}

Additional Information

• Accessing documents with WebDav