Then I add header(access) to my GET request I recieve

GET https://some.api.address/endpoint net::ERR_HTTP2_PROTOCOL_ERROR xhr.js:210

I use axios to send requests. Without header all work, but i cannot get data without access token.

API written on PHP. I have set Access-Control-Allow-Headers in PHP.

header('Access-Control-Allow-Headers: Origin, Content-Type, X-Auth-Token, Region, Access');