Why can't JSON.parse take a string into a json object?

Question

PHP

There is an ajax request:


And there is an error in the javascript console:


If I replace the "[" and "]" characters with "{" and "}" - I will have exactly the same error.

The string on the backend is generated using json_encode()

Why can't JSON.parse take the string into a json object, what am I doing wrong?

Answer 1

The server gives you the left data, instead of an array. You return not only an array, but also a string(92) ... . Fix your backend and only return JSON without extra lines.
You only need to return an array (i.e. not escaped JSON).