I have a shared drive that is connected via webdav. When I click a PDF document, the error message Es ist keine Anwendung zum Öffnen des Dateityps application/octetstream installiert. Möchten Sie die Installation einer entsprechenden Anwendung versuchen? Reproducible: Always Steps to Reproduce: 1. open webdavs-folder 2. select document 3. Actual Results: the documents appear as application/octetstream instead of their right file type (e.g. PDF)
Thanks for the bug report. If mime type detection goes wrong, then this is probably a KIO issue. Note that mime type detection for remote files only takes the extension into account (to prevent excessive network traffic when downloading the files to examine their contents, which might be required to determine the type). Does your PDF file have the standard extension .pdf? If not, then it's expected that the type is not known.
yes, it has the extention .pdf
*** This bug has been marked as a duplicate of bug 289083 ***