Relative links to other files in pdf viewer point to the opened file

I want to know if there is a possibility to open relative links to pdf files from within another pdf file displayed in the pdf viewer. All pdfs are in the same nextcloud.

I can open pdfs in nextcloud without problem. I have many pdf files, which are linked by relative paths, but the path created by the pdfviewer points to the very file that is open.

Path of file my.pdf opened in pdfviewer:

Any path to another file, when I hover over the link:

With this url nothing happens obviously.

Is there a possibility to configure the path building? Or is it a bug? I would really appreciate, if I could use relative links in pdfs.

I’m running nextcloud 13.0.2 on a webspace, don’t know the webserver, but I think it should not be relevant here.