Web Login
If possible, you should use the Password/API Key Authentication instead of Web Login.
- You don't want to save your username/password
- TOTP autofill is not working in the native flow with your password manager
- Your server does not support native login (e.g. you are using OIDC)
WebAuthn/Passkey authentication is blocked in the embedded browser. The alternative would be using iOS's built-in Safari view, which supports passkeys natively, but iOS privacy restrictions prevent the app from reading the authentication session cookies from that browser, making it impossible to complete the login flow.
The only way to resolve this would be through Associated Domains which is a mechanism that verifies the domains accessed by the app using a configuration file hosted on the domain itself. This would allow passkeys to work directly in the embedded browser, eliminating the need to switch to Safari's view. Unfortunately, this is not feasible in this scenario, as the servers belong to you and there is no way for us to configure Associated Domains on your behalf.