Vaultwarden Web Vault does not load (infinite spinner) on Synology Docker, even with SIGNUPS_ALLOWED set

[genioa39]

I am running Vaultwarden using Docker on a Synology NAS (DSM 7.2). The container starts without any errors in the logs, and the /data folder is correctly populated with files. The web server launches and I can reach the Vaultwarden interface at http://<NAS_IP>:8181, but the web client only shows the loading spinner (infinite loading). The registration or login form never appears.

Steps I have tried:

• Verified folder permissions for /data, using full access
• Set the environment variable SIGNUPS_ALLOWED=true
• Restarted and recreated the container multiple times
• Tested from different browsers and devices
• Checked Docker/container logs (no errors)
• Tried different ports
• Used the official image vaultwarden/server:latest

Is there anything else I should check, or is there a compatibility issue with Vaultwarden and Synology Docker? How can I get the web vault to load correctly?

[BlackDex]

I would suggest to read this projects readme a bit better.

[genioa39]

you can point the way to find the solution

[stefan0xC]

https://github.com/dani-garcia/vaultwarden/wiki/Enabling-HTTPS

[xMisterW]

Hello there,
have the same issue since yesterday, before everything worked, and my traefik reverse proxyis running in cloudflare error code 520 unknown server error.
do i have to put it from vaultwarden to traefik in https too?

[stefan0xC]

Can you check your logs (from your browser, cloudflare, traefik)? A 520 error code indicates that this is another issue than the one reported (which is caused by not having a secure context and is probably not related to your issue if your setup has worked before).

[xMisterW]

Nevermind i have checked everythin, and i had a typo in my ddns-updater docker config.json which caused a false ip only for the domain of vaultwarden.