Use this filter to send a URL for a signature from one site to another, to copy signatures to somewhere else using an API action. It requires adding the source site as an allowlist target.

Usage

add_filter('frm_signature_allowlist_domains', 'add_approved_src_domain');

Parameters

• $whitelisted_domains (array)

Examples

add_filter('frm_signature_allowlist_domains', 'add_approved_src_domain');
function add_approved_src_domain($whitelisted_domains){
	$whitelisted_domains[] = 'cdn.dev.formidableforms.com';
	return $whitelisted_domains;
}