Hello everyone,
I have a local Rocket.Chat installation that runs perfectly in web browsers and desktop apps. However, when I try to access the workspace from mobile devices (tested on both iOS and Android), I immediately get the message:
“Invalid URL”
A few details:
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The workspace URL format is: chat.domain.com
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The error appears almost instantly — it doesn’t seem to make any network request.
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If I remove the subdomain and try just domain.com, the app actually checks the URL and then reports that no Rocket.Chat server is found there (so it’s resolving correctly).
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My SSL roverall rating (via Qualys) is A
Setup details:
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OS: Ubuntu VM
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Deployment: Docker
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Reverse proxy: Nginx (installed natively on the host)
Everything else works great — it’s just the mobile apps that reject the URL as invalid.
Has anyone encountered this issue before, or is there something specific I should check in my Nginx or server configuration for mobile access?
Thanks in advance!
