Safari Compatibility?

Okay, now I'm asking about Safari.

I had JSzip working a few weeks ago, but had not yet tested in Safari myself. My client had, though, and said it worked. However, now it's not working... It's very possible it could be something I've added since then. But I notice that on your home page the "testing status" for Safari is in red. Does this mean it doesn't work there?

I may see if I can get the Downloadify option to work there. Thanks!