I am not sure about unsafe script or chrome, but on Apple, the main log in screen looks like this. It's been doing this for about a week. I also google searched a few Prime threads, clicked on them, and they all brought me to the homepage pictured below.
For people who were having the issue, try clearing your browser cache if it's still acting up. If that doesn't fix it, let me know and I'll keep working on it.
I'm still not sure why I can't reproduce it in Chrome.