Firebase Cloud Functions https.onCall finished with status code: 204
Firebase Function
const functions = require('firebase-functions');
const admin = require('firebase-admin');
const cors = require('cors')({ origin: true });
exports.addMessage = functions.https.onCall((data, context) => {
return { text: "Test" };
});
Issue
The problem is when i call this function from the app i first get finished with status code: 204 and after that finished with status code: 200
How can i prevent this?
This is normal, and you shouldn’t do anything to prevent it. The first request that results in 204 is what happens when CORS performs a preflight request. The 200 is the final serviced request.
You can read more about that here:
The answers/resolutions are collected from stackoverflow, are licensed under cc by-sa 2.5 , cc by-sa 3.0 and cc by-sa 4.0 .
