Функции firebase и внешний API

const functions = require('firebase-functions');
exports.apiResponse = functions.https.onRequest((request, response) => {
const url = "https://test-proj-heroku.herokuapp.com/api/plans"
const https = require('https');
  var req = https.get(url, (resp) => {
    let data = '';
    resp.on('data', (chunk) => { data += chunk; });
    resp.on('end', () => {
        var result = JSON.parse(data);
        response.send({ fulfillmentText: "Firebase ? API Is Running..." });
      });
    }).on("error", (err) => { console.info("Error: " + err.message); });
});

Почему эта облачная функция не отвечает? Размещено на этом URL = https://us-central1-ayyanalee-e891b.cloudfunctions.net/apiResponse.