Browser requirements for TiddlyWiki?

[ClassicChess]

What are the browser requirements for TiddlyWiki?

Obviously it requires Javascript.

But what about other browsers? Such as Internet Explorer 5?

I just got a message from a guy trying to visit my site and he said he couldn't see anything. It said "Error on the page" and displayed a blank screen.

Is that normal? Or did maybe he have his settings wrong?

I haven't seen anything like that myself, so I have no idea what's going on.

What about other browsers. Mac, Linux, whatever.

Are they going to work right, or will I need to put a warning on the front page?