Axios how to solve network error problem?

Question

CORS

Chrome does not identify this error, but gives out the code, and apparently the matter is in the interaction of axios and API (but this is not accurate) https://www.reddit.com/r/reactjs/comments/66v4pg/c... .

Mozilla outputs: "Request from foreign origin blocked: Single origin policy forbids reading remote resource on 'api link here'. (Reason: CORS request failed)." https://developer.mozilla.org/en/docs/Web/HTTP/COR...
Here is the request:

var data = "username=юзернейм&password=пароль"
axios("Cсылка на апи", {
method: 'POST',
async: true,
crossDomain: true,
data: data,
headers: {
"accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8",
"accept-language": "en-US,en;q=0.9,ru;q=0.8",
"content-type": "application/x-www-form-urlencoded",
}
}).then((response) => {
console.log(response)
})
.catch((error) => {
console.log(error)
})

This is an authorization apish and authorization passes successfully, but soon it knocks back, can there be a problem on the client side (mine)? Can anything be done?
I experimented with headers, but to no avail.

Answer 1

Read until you understand

Answer 2

In my case, the error with CORS occurred only on one address, and the AdBlock extension turned out to be the cause. Url contained the following line - ../mark/ ad000 /wordstat . The ad blocker decided that something was being downloaded that it was designed to block .. (ad - (English) advertising).