javascript fetch - Failed to execute 'json' on 'Response': body stream is locked

Question

When the request status is greater than 400(I have tried 400, 423, 429 states), fetch cannot read the returned json content. The following error is displayed in the browser cons

Answer 1

I know it's too late but it can help someone:

let response = await fetch(targetUrl);
let data = await response.json();