Call to iframeIframe() method within IframeDefaultFormatter is made in this way:
$elements[$delta] = self::iframeIframe($item->title, $item->url, $item);
It means that even if you extend this class and want to override only the content of iframeIframe() method it is not possible because it calls the static method using self:: instead of static::
Extend IframeDefaultFormatter class and override iframeIframe() method.
Confirm that child class iframeIframe() implementation is not invoked, but the parent instead.
Call the method using static:: instead of self::
Fixed
2.0
Miscellaneous
Automatically closed - issue fixed for 2 weeks with no activity.