[ChuckH]

In my books I include a front matter section which lists my other books. I've been doing this with a plain old list, but I would like to use an iFrame to do this instead, since it will look nicer.

However, the iframe doesn't pass ePubcheck 3 (it says it is not well-formed). This really has me stumped. I've tried using a shortened URL from Google's URL shortening service to do this, and it works, but does not display the iFrame properly. I would appreciate any help you guys could offer on this, as to how to get the xhtml to be well-formed so it can pass epubcheck.

Here's the iframe content:

<iframe src="https://widgets.itunes.apple.com/widget.html?c=us&brc=FFFFFF&blc=FFFFFF&trc=FFFFFF& tlc=FFFFFF&d=Offered for Sale on the iBooks Store.&t=Books by Chuck Humbertson&m=ebook&e=ebook&w=325&h=370&ids=8426951 29,614718023,659890470,604012761,821462742,6425525 59,736639241,851008587,975864229,767351429,1020080 855,865892272,945325935,674999946,993170315,728952 369,667869073,1035526405,668573287,1049393933&wt=p laylist&partnerId=&affiliate_id=&at=1000l7AC&ct=" frameborder=0 style="overflow-x:hidden;overflow-y:hidden;width:325px;height: 370px;border:0px"></iframe>

Here it is with a shortened Google URL:

<iframe src="https://goo.gl/hpGy1P"></iframe>