Hey there -
Had another post on this but it's closed. Since I noticed no one fixed it I figured I'd bump it while I was here doing other stuff. It's some favicon loader code that's trying to pull a 0kb iphone favicon.
Loading mixed (insecure) display content “http://developer.mypurecloud.com/images/default-apple-touch-icon.png” on a secure pageFaviconLoader.jsm:147:19
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Anyway, I hope this helps. Or just tell me to be quiet about it.