Enable "Sign in with Apple" in Web Viewer

Use case or problem

I want to sign in to different websites where I only have an account through Apple sign in. I want to be able to sign in to those websites in the web viewer.
Right now, when I try to sign in with Apple, then I’ll type my username and password, and it’ll even send me the verification request with the code, but it will instantly fail:

Proposed solution

Fix whatever is causing sign in with Apple to fail.

Current workaround (optional)

No current workaround that I’m aware of

Related feature requests (optional)

I searched and searched and couldn’t find any issues related to this.

This may be outside of Web Viewer’s scope.

Web viewer is not a replacement for your primary browser. Web viewer provides a quick way to access web pages for research within Obsidian. However, it does not offer the full functionality, security controls, or extensibility of a dedicated browser. (Web viewer - Obsidian Help)

Rephrased the title as a request instead of a problem statement (was “Sign in with Apple doesn’t work in Web Viewer”).