CORS

exports.postFeed = functions.https.onRequest(async (request, response) => {
  response.set("Access-Control-Allow-Origin", "*");
  response.set("Access-Control-Allow-Methods", "GET");
  response.set("Access-Control-Allow-Headers", "Content-Type");
  response.set("Access-Control-Max-Age", "3600");
  
  //your code here
  
  })