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

Hi,
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.

Example:
Path of file my.pdf opened in pdfviewer:
https://domain.com/nextcloud/index.php/apps/files/?dir=/test&fileid=252#pdfviewer

Any path to another file, when I hover over the link:
https://domain.com/nextcloud/index.php/apps/files_pdfviewer/?file=/nextcloud/remote.php/webdav/test/my.pdf

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.

rob