All right, we might’ve narrowed it down to a server configuration thing, so far had success with a new pluggable core function for rewrites.
But first, let’s try the simple solution!
Are you using any kind of services such as CloudFlare or similar for your sites? If so, please try disabling these to make sure they aren’t causing any complications
If the above fails, you can try the below solution.
Please add the following code to the end of your themes functions.php file, a plugin or whatever you feel comfortable with:
if ( ! function_exists( 'wp_redirect' ) ) :
function wp_redirect($location, $status = 302) {
global $is_IIS;
/**
* Filter the redirect location.
*
* @since 2.1.0
*
* @param string $location The path to redirect to.
* @param int $status Status code to use.
*/
$location = apply_filters( 'wp_redirect', $location, $status );
/**
* Filter the redirect status code.
*
* @since 2.3.0
*
* @param int $status Status code to use.
* @param string $location The path to redirect to.
*/
$status = apply_filters( 'wp_redirect_status', $status, $location );
if ( ! $location )
return false;
$location = wp_sanitize_redirect($location);
header("Location: $location", true, $status);
return true;
}
endif;
This is essentially the same function core uses, but we’ve removed a call to status_header() from it.
I’m not guaranteeing this is it, but tested sites are as mentioned showing this as functional.
