Adding Access-Control-Allow-Headers list to make rest call from a custom component

Summary

Adding Access-Control-Allow-Headers list to make rest call from a custom component

Content

Hi,

I am calling a rest api from a custom component passing some Headers.. But appn is not rendering in IE giving the below error:-

SEC7123: Request header kmauthtoken was not present in the Access-Control-Allow-Headers list.

kmauthtoken is my Header param name.

How can i pass this in the header list values in the Rest call ??

Thanks,

Sweta

Code Snippet

  // Passing the en_US as the default header parameter
    self.ep.initConfiguration({
      headers: {
        'kmauthtoken': '{\"localeId\":'+self.getLocale(self.properties.sessionLocaleCd)+',\"localeOverride\":\"true\"}'
      }
    });

  self.ep.fetch().then(function(result) {


      if (result.response.ok) {
        alert("Success");
}
});