Permissions Request on restricted folders on macOS

[bitsandfoxes]

Issue

When running an application on macOS from within restricted directories such as Downloads, Documents, or Desktop, users encounter a "Request access to files" popup.

Cause

This behavior is caused by the HttpClient invoking CommonUnixIPGlobalProperties.getDomainName, which requires file access.

Impact

• The popup is triggered by default and may be undesirable for some users.
• Not granting access does not affect error reporting.

Proposed Solutions

1. Preferable: Find a way to avoid invoking the domain name resolving.
2. Make the UnityBackgroundWorker public. It relies on UnityWebRequests for sending events.