How to fetch text format response from API in frontend

I am getting a response “executed successfully” in text/html format from API with status code 200.

I want to show response to user through notification.

I tried to store that response in response but It’s not working, I’m getting blank response.

Export const abctrigger = (payload, signal) => {
  Return fetch(API_URL, {
    method: post,
    Signal: signal
    Body: JSON.stringify(payload),
    headers: {
      Content-Type : 'application/json'
    }
  })
    .then((response) => response.text())
    .then((response) => {
      Return response;
    })
}

I tried by changing and removing headers and also used .text() method but still getting problem.

Everything is working fine in backend.

I want to store text/html format response from API in response and show that to user through notification.