dav/davs behind proxy doesn't work

[Jean-Christophe]

I'm using Ubuntu 20.04 behind manual proxy.
When I want to connect on a server with webdav, I have a message : "Erreur HTTP : Erreur de résolution de cloud.rochodc.com : Nom ou service inconnu" -> DNS Error Name ou service not known

I can connect to a webdav server on my private network.

I can connect to cloud.rochodc.com with Firefox and the proxy I use for the system.
I can connect to cloud.rochodc.com with Ubuntu 18.04 with the same proxy and nautilus.

Online account with parameters doesen't work at all.

JC

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: nautilus 1:3.36.3-0ubuntu1
ProcVersionSignature: Ubuntu 5.4.0-40.44-generic 5.4.44
Uname: Linux 5.4.0-40-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.3
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: GNOME
Date: Fri Jul 17 08:22:05 2020
InstallationDate: Installed on 2020-07-09 (8 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
SourcePackage: nautilus
UpgradeStatus: No upgrade log present (probably fresh install)
usr_lib_nautilus:

[Sebastien Bacher (seb128)]

Thank you for your bug report, the issue sounds like an upstream one, could you report it there?

https://gitlab.gnome.org/GNOME/gvfs/-/issues

[Jean-Christophe (kibidouil-i)]

It's done :

https://gitlab.gnome.org/GNOME/gvfs/-/issues/495

[Sebastien Bacher (seb128)]

Thanks