Я не могу найти, где ошибка. SyntaxError: json.parse: неожиданный символ в строке 1 Столбец 1 данных JSON

//if location exist in browser
if (navigator.geolocation) {
    navigator.geolocation.getCurrentPosition(position => {
        long = position.coords.longitude;
        lat = position.coords.latitude;


        let proxy = 'https://cors-anywhere.herokuapp.com/';

        //Dark Sky API --- api key is in api address after forecast/
        //on the end of api change numbers for longitude & latitude in variable
        const api = '${proxy}https://api.darksky.net/forecast/09e239664b0eb3d9ee3f2e5e9463217a/${lat},${long}';

        // fetch extract info from const api
        fetch(api)
        // return fetch data to Json 
        .then(response => {
            return response.json();
        })
        .then(data=>{
                const {temperature, summary } = data.currently;
            });
    });
}