there are two questions about including the opt-out iframe in page.
If opt-out page can be switched to SSL-secured version (https://…), opt-out is only working for non secured page, Opt-out switch is not responding on SSL-secured page.
URL of opt-out page can be switched by php between SSL and normal version like, it results in:
I know: Cookie must be set twice to avoid tracking of SSL-secured AND normal version.
How to enable opt-out for normal AND secured site?
Iframe is embedded with: