src/vs/platform/native/electron-main/nativeHostMainService.ts/NativeHostMainService/resolveProxy
class NativeHostMainService:	async resolveProxy(windowId: number | undefined, url: string): Promise<string | undefined> {
		const window = this.windowById(windowId);
		const session = window?.win?.webContents?.session;
		if (session) {
			return session.resolveProxy(url);
		} else {
			return undefined;
		}
	}