Hi @<1523701070390366208:profile|CostlyOstrich36> , thank you so much. I was able to resolve the preview and url issues, this was a configuration issue with CORS and my reverse proxy, also I had an SSL issue.
What I am currently wondering is, if there is a way to put tags programmatically on the items directly visible on the datasets pages? I know how to put tags on the dataset versions, but I could only find that I am able to manually tag datasets themselves at top-level... Can I have the tags of the first dataset version be automatically taken for the top-level item too? (I don't mean the project, but the "folder" that holds the dataset versions)?