404 when trailing slash missing on App Platform static web site

So I posted a link to one of my static web pages deployed as a DO App and when a user clicked the link his browser dropped the trailing slash and he got a 404. I thought I might be able to upload an .htaccess file to solve this but that does not work. I learned on these forums that .htaccess is not used for DO App static web pages.

Any suggestions? Here is the site: https://nmcollector.net/gpw/ (remove the trailing slash to see the issue.

thanks