Unexpected token in JSON at position 1024 react native

<p>PHP warning: blah blah blah</p>
{"foo":"bar"}

[
  {
    "id": 0,
    "name": "Superman",
    "strength": 10,
    "intelligence": 7,
    "speed": 9
  },
  ...
]

'{\"key1\":\"value1\", \"key2\":\"value2\"}'

"{\"key1\":\"value1\", \"key2\":\"value2\"}" 

class App extends Component {
  componentDidMount() {
    window.fetch('api/drinks')
      .then(response => {
         console.log(response.status);
         console.log(response.body);
         return response.json();
      })
      .then(json => console.log(json))
      .catch(error => console.log(error))
}