I can not find where the error is because the frame does not work. The widget is:
<html>
<frameset>
<frame name="iframe13" src="blank.html">
</frameset>
</html>
and the link is:
<a href="{{post.post_link}}" target="iframe13">{{post.post_title}}</a>
This link opens in a new window, the frame does not work ...
Thank you very much!