cappe
22 August 2025 09:38
1
Linux
3.4.6
Mint 22.1 xfce
WebDAV
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La sincronizzazione ha sempre funzionato sia con android che da linux. Da quest'aggiormento la app per linux mi da questo errore ' TypeError: Failed to fetch'. Ho urgenza di risolvere
Google translate
@cappe welcome to the forum.
This matter has been raised on GitHub and a fix created. Not being a developer I do not know when this fix may appear in a release.
opened 11:06AM - 21 Aug 25 UTC
closed 08:29AM - 22 Aug 25 UTC
bug
desktop
high
v3.4
### Operating system
Linux
### Joplin version
3.4.6
### Desktop version info…
Joplin 3.4.6 (prod, linux)
Device: linux, AMD Ryzen 5 5500U with Radeon Graphics
Client ID: 735842ff856a48779afa13ff83e7a8cb
Sync Version: 3
Profile Version: 48
Keychain Supported: No
Alternative instance ID: -
Revision: 4128061
Backup: 1.4.3
Freehand Drawing: 3.1.0
This issue applies to all versions **AFTER** Desktop v3.4.1
**Server**
Joplin Server 3.4.2
### Current behaviour
Prior to v3.4.2 I could sync to a local instance of Joplin Server using a self-signed TLS certificate on the reverse proxy in front of the Joplin Server. This was enabled by pointing the Joplin client at at a copy of the CA certificate using the relevant field in the sync advanced settings.
From v3.4.2 onward (coincidentally when Joplin Server SAML was added as a sync option to the client?) the sync fails with the error "Failed to fetch"
I mention the certs as when looking at the console log generated by using *flags.txt* the below entry appears before things start going wrong.
`POST https://joplinx86.redacted.net/api/sessions net::ERR_CERT_AUTHORITY_INVALID`
After this the application log file shows entries such as:
```text
2025-08-21 11:05:01: JoplinServerApi: [warn] curl -v -X POST -H "X-API-MIN-VERSION: 2.6.0" -H "Content-Type: application/json" -H "Content-Length: 113" --data '{"email":"user1@redacted.net","password":"******","platform":2,"type":1,"version":"3.4.6"}' 'https://joplinx86.redacted.net/api/sessions'
2025-08-21 11:05:01: JoplinServerApi: [warn] Code: <undefined>
2025-08-21 11:05:01: JoplinServerApi: [warn] TypeError: Failed to fetch
TypeError: Failed to fetch
```
Enabling "Ignore TLS errors" in the client settings has no effect.
### Expected behaviour
I would expect that syncing with a Joplin Server would work as it did with desktop v3.4.1 and earlier.
### Logs
These logs were generated using a virtual machine to duplicate what I found on my "live" system. Using a VM enabled me to quickly test for the error using multiple versions of Joplin.
[console.txt](https://github.com/user-attachments/files/21916429/console.txt)
[log.txt](https://github.com/user-attachments/files/21916427/log.txt)
1 Like
A new release 3.4.7 has just been made, which will fix it
system
21 September 2025 13:19
5
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