Problem
AMP REST APIs responds with text/html type for the JSON values. 

Example API: /cm/get_system_version

Response:

{"state": true, "data": {"version": "Beta.AMP.3.4.5.0"}}

Response Headers:

content-type: text/html; charset=utf-8

The expected content-type is: application/json.
Solution
Changed the type of HTTPResponse to content_type='application/json' which has json in the response Eg:  return HttpResponse(json.dumps([True]), content_type='application/json')

Tested that the API response shows the return type shows application/json as content type

Tested it for /cm/get_system_version and login 

Login Response:

{

    "msg": "Logging in successfully.",

    "user_info": {

        "csrf_token": "CJtdyFegQ86OIZEZ58BMgmSVYD09Uu2j",

        "django_language": "en",

        "hive_key": "1",

        "current_user": "array"

    },

    "error_code": 0,

    "hive_key": 1,

    "check_license": [

        false,

        ""

    ]

}
/cm/get_system_version 
{"state": true, "data": {"version": "Rel.AMP.3.6.0.2"}}