I have a web application that is being developed on a windows env and runs on ubuntu 16.04.
I have no issues Posting info to my sqlite database file blog.db
blog.db
It was my nginx configuration.
within /./etc/nginx is a file called: nginx.conf
I had proxy_set_header Connection "upgrade";
when it should be proxy_set_header Connection $http_connection;
This fixed my problem and my database now works on the ubuntu side of things.