Opt-out iframe HTML Code correct?

this is the copied iframe by Piwik:

<iframe
        style="border: 0; height: 200px; width: 600px;"
        src="https://xxx.yyyy.de/index.php?module=CoreAdminHome&action=optOut&language=de&backgroundColor=&fontColor=&fontSize=&fontFamily="
>

No close tag like </iframe> ?

Hi,

You are correct. The </iframe> is missing. This will be fixed in the next release in a few days.