src/vs/workbench/services/remote/common/remoteExplorerService.ts/TunnelModel/makeLocalUri
class TunnelModel:	private makeLocalUri(localAddress: string, attributes?: Attributes) {
		if (localAddress.startsWith('http')) {
			return URI.parse(localAddress);
		}
		const protocol = attributes?.protocol ?? 'http';
		return URI.parse(`${protocol}://${localAddress}`);
	}