My site need a custom HTTP header to function correctly. The HTTP header is added through add_action('wp', 'add_custom_header');
When the page is being cached using WP Super Cache, my custom HTTP header is missing. Since WP Super Cache is adding extra HTTP header as well (WP-Super-Cache: Served supercache file from PHP), is it possible to include this custom HTTP header as well? The value of the header is not fixed, meaning it changes from post to post.
Your feedback would be highly appreciated.