“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

In my Case there was problem with "Bearer" in header ideally it should be "Bearer "(space after the end character) but in my case it was "Bearer" there was no space after the character. Hope it helps some one!