[Bug]: Outline client doesn't work on Linux Fedora 41

[mars-json]

Application

Outline Client

Describe the bug

VPN connection with Outline server does not start on desktop with Fedora 41 (Linux)

Steps to reproduce

1. Start application
2. Enter valid server
3. Click connect
4. Error

Output from console:

$ ./Outline-Client.AppImage 
Outline is starting
loading web app from file:///tmp/.mount_OutlinJMEDJc/resources/app.asar/client/www/index_electron.html?appName=Outline
Could not load active tunnel:  [Error: ENOENT: no such file or directory, open '/home/vadim/.config/Outline/connection_store'] {
  errno: -2,
  code: 'ENOENT',
  syscall: 'open',
  path: '/home/vadim/.config/Outline/connection_store'
}
Checking for update
Update for version 1.14.0 is not available (latest version: 1.14.0, downgrade is disallowed).
[42994:1218/220439.485043:ERROR:gl_surface_presentation_helper.cc(260)] GetVSyncParametersIfAvailable() failed for 1 times!
[42994:1218/220504.607280:ERROR:gl_surface_presentation_helper.cc(260)] GetVSyncParametersIfAvailable() failed for 2 times!
[42994:1218/220504.620398:ERROR:gl_surface_presentation_helper.cc(260)] GetVSyncParametersIfAvailable() failed for 3 times!

What did you expect to happen?

Connection should be started

What actually happened?

Connection does not start.

Outline Version

1.14.0

What operation system are you using?

Linux

Operating System Version

Fedora 41

Screenshots and Videos

[mars-json]

I am wondering if you have some description how to add VPN connection for Outline using modules for Network Manager, without launching Outline app?
For example, I have working connection for StrongSwan (connection to corporate VPN server).
And I use it without extra apps.

[mars-json]

It seems problem was caused by the fact that person who distributes keys send me URL, which should be clicked to get a key.
And key is OS (platform) dependent.

I took old key which is used on smartphone, and Outline client was able to start VPN session.
After clicking on URL distributed to me, and selecting "download" for client, I also received working key for SS.

[mars-json]

But: I still get errors when I launch Outline client from CLI:

$ ./Outline-Client.AppImage 
Outline is starting
loading web app from file:///tmp/.mount_OutlinYXsFt4/resources/app.asar/client/www/index_electron.html?appName=Outline
Could not load active tunnel:  [Error: ENOENT: no such file or directory, open '/home/vadim/.config/Outline/connection_store'] {
  errno: -2,
  code: 'ENOENT',
  syscall: 'open',
  path: '/home/vadim/.config/Outline/connection_store'
}
Checking for update
Update for version 1.14.0 is not available (latest version: 1.14.0, downgrade is disallowed).
[80390:1218/234443.428332:ERROR:gl_surface_presentation_helper.cc(260)] GetVSyncParametersIfAvailable() failed for 1 times!
[80390:1218/234500.236369:ERROR:gl_surface_presentation_helper.cc(260)] GetVSyncParametersIfAvailable() failed for 2 times!
[80390:1218/234500.246812:ERROR:gl_surface_presentation_helper.cc(260)] GetVSyncParametersIfAvailable() failed for 3 times!

[jyyi1]

Hi @mars-json , we are currently working on a revamp of the Linux routing using NetworkManager because the existing routing logic has a lot of limitations (#2312 ).

From your error message, it seems we are not able to download the dynamic access key from the URL. This might be caused by a CORS issue.