message: Add Accept and Content-Type headers
diff: @@ -81,6 +81,10 @@ export default class WebServiceClient {
  const options = {
  auth: `${this.accountID}:${this.licenseKey}`,
  + headers: {
  + Accept: 'application/json',
  + 'User-Agent': `GeoIP2-node/${process.env.npm_package_version}`,
  + },
  host: this.host,
  method: 'GET',
  path: parsedPath,
  