Javascript – When making GET request, getting "Response to preflight request doesn't pass access control check: It does not have HTTP ok status."

I m making GET request to Backend, with the token, but getting this error

Access to fetch at 'http://XXX.XX.XXX.XX:8067/v1/api/subscriber/list/1/20' from origin 

'http://localhost:5173' has been blocked by CORS policy: Response to preflight request 

doesn't pass access control check: It does not have HTTP ok status.

I have seen the solutions here but None of them worked me. Could you assist me with this issue?

Is this Frontend or Backend issue?

code:

export const getAllSubscribers = async (page, limit) => {
    const token = localStorage.getItem('token').split(":")[1];
  
    const url = api.allSubscribers(page, limit);

    const headers = new Headers();
    headers.append('Authorization', `Bearer ${token}`);
    headers.append('Content-Type', 'application/json');


    try {
      const response = await fetch(url, {
        method: 'GET',
        headers: headers,
      });

      console.log("response------->", response.headers);

      if (!response.ok) {
        throw new Error(`Error fetching subscribers: ${response.statusText}`);
      }
  
      const data = await response.json();
      return data;
    } catch (error) {
      console.error("Error occurred during allSubscribers request:", error);
      throw error;
    }
}