访问AWS EB PHP 5.4上的http X_ *标头

I have the Wordpress deployed to the AWS EB platform PHP 5.4.45. When I make a request from Angular frontend to the API with cookie authorization I need to include X_WP_NONCE header, otherwise, Wordpress will ignore my auth cookie.

The problem is that on EB deployment there is no X_WP_NOCE in the $_SERVER variable. Neither there is HTTP_X_WP_NONCE. There is no nonce at all.

And it looks like all headers which prefixed with X_* getting stripped out.

curl -XGET -H 'A: this works' -H 'X_A: this does not work' http://example.com/

var_dump($_SERVER);

--->

array(76) {
...
["HTTP_A"]=>
  string(19) "this works"
...

// But no HTTP_X_A variable
)

Unfortunately, X_WP_NONCE is the part of wordpress core and I cannot edit this code.

How can I tell EB to pass X_* headers to php?

Thank you,

UPDATE 1: apache_request_headers() does see the required header.

Since I have custom wp-config.php committed to the repo (it reads keys and passwords from environment variables, no Booo please), I can add a temporary workaround

if (function_exists('apache_request_headers')) {
  $all_headers = apache_request_headers();
  $_SERVER['HTTP_X_WP_NONCE'] = $all_headers['HTTP_X_WP_NONCE'];
}