This is one example. I have a similar issue getting OneNote to sync with SkyDrive. I have attached a tcpdump, and a tail of my logs.
The site is https://www.hightail.com
I can't list the whole URL here since it goes to a private file share. But the attached files show the activity. I am not seeing anything blocked. however the page doesn't display correctly. Nor can you utilize any of the links on the page (i.e. download). If I try the same site off my network, or by adding my source host to the skip transparent list it works as intended.
I thought maybe I needed to add all of these destinations to my skip list for destinations. That didn't work.
I have similar issues while trying to get OneNote to sync to Skydrive. In skip transparent mode source I am ok. I have been trying to build an exception list for Skydrive, but so far not there yet.
I am starting to believe that maybe I just have something configured wrong.
I use the policy helpdesk and check every site I pull from these logs, and all are ok.
I have logging turned on all my web application rules, but again nothing.
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