nginx blocks PUT requests

Problem

In flex.bi versions that are based on eazyBI 5.3 or later, PUT requests are used. If nginx is installed on the server, nginx blocks these requests causing general error on the flex.bi UI, when importing data, deleting or emptying a cube etc. This error is not logged in any of flex.bi log files.

Solution

Add the following code to the highest level (http {}) of your nginx configuration file:

    proxy_http_version 1.1;
    proxy_set_header Connection "";