'{}' is invalid JSON

[lolpez]

I have an API which returns as response '{}' when a method DELETE worked.

However when using the option json: true, I get the following error:
'400 - {"err":"Invalid json","ECODE":"JSON_001"}'

The option is supposed to parse the response body as JSON so I should get an empty object as response {}.

I believe when JSON parsing '{}' returns {} which is valid.

Why is this happening?

[analog-nico]

What you have here is actually not related to the response but instead you get a 400 status code from your API. That means that the JSON in your request is wrong. Please double check your data variable.