src/vs/platform/request/browser/requestService.ts/RequestService/request
class RequestService:	request(options: IRequestOptions, token: CancellationToken): Promise<IRequestContext> {
		this.logService.trace('RequestService#request', options.url);

		if (!options.proxyAuthorization) {
			options.proxyAuthorization = this.configurationService.getValue<string>('http.proxyAuthorization');
		}

		return request(options, token);
	}