Squid blocking mobile app
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 I have just implemented squid into my network, with lightsquid, and ClamAV enabled through squid. Everything seems to be working, except for one CRITICAL application on my iPhone =) When I am on the network with iPhone, and login to ESPN Fantasy Sports app, and try to view one of my football teams, I get an error that the team could not be loaded. If I turn off squid, it works fine. Turn squid back on, doesn't work. Now, I could really live without this and just use cellular data on my phone when I want to do this, but I thought this would be a great learning exercise for me to 1. determine the cause of the block, and 2. how to whitelist/exception it so it can go through. Being newer to pfsense, and squid, can someone get me pointed in the right direction to see in a log what is blocking this app, and how to remediate/allow? Thank you! 
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 Google for SSL Pinning, for example https://docs.diladele.com/faq/squid/sslbump_exlusions/index.html 
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 I am not using SSL intercepting / filtering at this time. I wanted to get a better sense of the software before diving into that.