How to remove title from OPTIONS?

Question

JavaScript

Hello everyone, when sending a request to another site, an error appears in the console:

Access to fetch at ' https://min-api.cryptocompare.com/data/price?fsym=... ' from origin ' localhost:3000 ' has been blocked by CORS policy: Request header field x-compress is not allowed by Access-Control-Allow-Headers in preflight response.

If I understand correctly, the browser sends the "x-compress" header in options to the server, and the server replies that it does not accept such headers. Everything would be fine, but the program worked for a long time, hence the misunderstanding of what is happening.
I make a request from a React application using fetch.

refreshFetch = async (url) => {
  try {
    return await (await fetch(url)).json();
  } catch (e) {
    throw Error('Ошибка');
  }
};

Thank you!

Answer 1

Ran into the same issue, seems only relevant for chrome on mac.
It arose literally yesterday, until I found no solutions, except to add a field in response to Options on the backend.

Answer 2

Good afternoon!
You can add x-compress to the header, maybe this will help you:

app.use("/", (req, res, next) => {
/* */
 res.setHeader("Access-Control-Allow-Headers", "accept, authorization, content-type, x-compress");
/* */
}