We are seeing a new odd behavior for hotlinks to a streamlit.app when posted to our support forum. When browsing (via Firefox, have not tested other browsers) to a hotlinked application, the CSS on the destination site is not loading. The Discourse generated preview does render the CSS.
When we paste the URL into the address bar (or browsing from a hotlink on a MediaWiki page), the CSS loads and it (the buttons and drag’n’drop hotzones) work.
(Not germane to the problem but… the streamlit app is a file format converter. Taking a genealogy data file in the GEDCOM text format and converts them to the Gramps XML text format.)
The behavior is described in more detail (including screen captures) at:
https://gramps.discourse.group/t/gedcom-7-library-future-basis-of-a-new-gedcom-7-import-addon/7781/14
The hotlink, posted as markdown and bare.