Plugin is unable to access Strapi data

[Compuponder]

The plugin works fine on a localhost test system. But when moved to a production server (Strapi proxied via nginx) it is unable to access the Strapi data. In the configuration page, no collection type can be selected to work with the plugin. The dropdown is just empty (see screenshot), despite content types exist.

I suspect, that the Plugin does not find the proxied location of the strapi API.

[LuisRodriguezLD]

yeah, it sounds like an nginx problem;
do you have a repo I can take a look at?