Connect to WebDAV server with Nautilus 3.18

I want to access to my files stored in my Synology NAS using WebDAV. I enabled the WebDAV server on the NAS and I can establish a working connection in the CLI using cadaver. However, I want to be able to browse my files using Nautilus. I use Archlinux. Usually, to access a distant server, I go to the “Other locations” page and select the one I want:  For WebDAV, I have two choices: * “alta-plana (dav+sd)” for WebDAV through HTTP, * “alta-plana (davs+sd)” for WebDAV through HTTPS. “alta-plana” is the name of my NAS. When I click on the lines, I always get an error (the same for the two lines): **Impossible to access location** Error resolving _webdav._tcp service "alta-plana" on domain "local". One or more TXT records are missing. Keys required: "u". Using the text field at the bottom of the window, I get different behaviours: * dav://alta-plana seems to do nothing except refreshing the window, * davs://alta-plana shows a Gnome Shell dialog box to ask me to accept or not the synology.com certificate and clicking “Yes” or “No” does absolutely nothing (not even refreshing the window). All information I could find about using WebDAV with Nautilus mention the now deleted dialog to connect distant servers so it is impossible to follow what it is said. Besides, I do not understand what exactly is missing. So, is there a way to access my files stored on my NAS through WebDAV with Nautilus 3.18 or, alternatively, will it be possible with the 3.20 version that came out today?