The URL scheme is not supported by the URL loading system. For example, passing a URL with a custom scheme that has no registered handler, or a scheme unsupported by URLSession such as ftp in newer OS versions.
unsupportedURL
swift The URL scheme is not supported by the URL loading system. For example, passing a URL with a custom scheme that has no registered handler, or a scheme unsupported by URLSession such as ftp in newer OS versions.