“SyntaxError: Unexpected token < in JSON at position 0”

Question

In a React app component which handles Facebook-like content feeds, I am running into an error:

Feed.js:94 undefined \"parsererror\" \"SyntaxError: Un

Answer 1

This error occurs when you define the response as application/json and you are getting a HTML as a response. Basically, this happened when you are writing server side script for specific url with a response of JSON but the error format is in HTML.