How do I resolve react cors error!

I'm really having difficulty to fix cors error on an app developed in react. The error snippet below from browser console:

Access to fetch at 'https://thingproxy.freeboard.io/fetch/https://api.yelp.com/v3/businesses/search?term=fish&location=phoenix&sort_by=best_match' from origin 'https://bitepoint.link' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled.

My fetch api code below:

const apiKey = "xxx";

const Yelp = {
search(term, location, sortBy) {
    return fetch( https://thingproxy.freeboard.io/fetch/https://api.yelp.com/v3/businesses/searchterm=${term}&location=${location}&sort_by=${sortBy},
{
// crossDomain: true,
// mode: "cors",
// method: "GET",
// credentials: "include",
// "Access-Control-Allow-Credentials": true,
// "Access-Control-Allow-Methods": "GET",
headers: {
Authorization: Bearer ${apiKey},
},
}
).then((response) => {
return response.json();
}).then((jsonResponse) => {
if (jsonResponse.businesses) {
return jsonResponse.businesses.map((business) => {
//console.log(business);
return {
id: business.id,
imageSrc: business.image_url,
name: business.name,
address: business.location.address1,
city: business.location.city,
state: business.location.state,
zipCode: business.location.zip_code,
category: business.categories[0].title,
rating: business.rating,
reviewCount: business.review_count,
};
});
}
});
},
};