I found your zip file 🙂
Unfortunately both problems still there (the fonts problem and the blog post representative thumbnail when clicked).
The IE11 alert is still there. Also chrome show me the same errors.
If I click in the alert show all content the font is than fixed. But next page same alert same font problem.
I mention that I deleted all the cookies and I tried on more than one pc.
I will sent data for login via profile contact.