JSONP MIME type error

Hi, loading the JSONP Response the MIME Type is wrong:

http://mydomain.xxx/wp-json/posts?type=myCustomPostType&_jsonp=CallbackName

The Content-type is wrong.

Right now (version 1.1.1) the response is “Content-Type:application/json;”

It should be “Content-Type:application/javascript;”

How can I change it? Do you think it will be fixed in the next release?

Thanks for your help

https://ww.wp.xz.cn/plugins/json-rest-api/