I was unaware of this Apple restriction, it doesn't seem to affect other apps that I have used to connect to local servers using Tailscale, such as Jellyfin, Plappa (Audiobookshelf), and Tachimanga. I tried the MagicDNS address in Komic and Safari, and it only worked in Safari, entered directly as http://*MagicDNS*:25600
That's odd. If it works in Safari, it should work in Komic too. In the next update, I'll include more detailed error messages instead of just showing "Unknown error", so it'll be easier to figure out what's actually going wrong.
Did you manage to find the issue on your side after updating?
The PC that I used for Komga had a motherboard short and I had to ship it out of the country to be fixed. I now have the PC back and upon testing the app gives the error: "The resource could not be loaded because the App Transport Security Policy requires the use of a secure connection."
Apple doesn't allow unencrypted (HTTP) connections from non-browser apps when you're outside your local network, which is probably what's causing that error. To connect remotely, your Komga server needs to be accessible over HTTPS. However, since you're already using your LAN IP, it should work locally. You can try a couple of things: - Open the same address in Safari and check if it loads. - Try using your Tailscale MagicDNS hostname instead of the raw IP. Some users mentioned that worked for them.