error.response.data is string, while it is a json

[velopert]

axios.post('/api/account/signup', { username, password }, { headers: {'Accept': 'application/json'} })
        .then((response) => {
            console.log(response);
        }).catch((error) => {
            console.log(error.response);
        });

REQ HEADER

POST /api/account/signup HTTP/1.1
Host: localhost:4000
Connection: keep-alive
Content-Length: 29
Accept: application/json
Origin: http://localhost:4000
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36
Content-Type: application/json;charset=UTF-8
Referer: http://localhost:4000/register
Accept-Encoding: gzip, deflate
Accept-Language: ko-KR,ko;q=0.8,en-US;q=0.6,en;q=0.4
Cookie: connect.sid=s%3AHzDwLfc4dEwawg6OIw9-_Or7AtNNgmRa.nwXRVQiydaGr%2BAs2rnoXsh9JtHTNXhcLkqj3UK7xQqc; key=eyJpc0xvZ2dlZEluIjp0cnVlLCJ1c2VybmFtZSI6InZlbG9wZXJ0In0=

RES HEADER

HTTP/1.1 400 Bad Request
x-powered-by: Express
content-type: application/json; charset=utf-8
content-length: 33
etag: W/"21-l17ts1r+4em82fMYBvsO0w"
date: Sat, 16 Jul 2016 08:32:20 GMT
connection: close

This is what I get in the console:

Object {data: "{"error":"BAD USERNAME","code":1}", status: 400, statusText: "Bad Request", headers: Object, config: Object…}

As you see, data is not a json and it is a string type, so I have to JSON.parse when I have to get the data.

When I was using 0.12, the data was json but now, it is not.
Do I always have to use JSON.parse for the error? or is this something that needs to be fixed?

Thanks!

[mzabriskie]

This is definitely a bug. Thanks for reporting.

[mzabriskie]

This has been fixed and is available in axios@0.13.1 which has just been published.

[velopert]

Wow, that was fast!
Thanks you.