"Bad Request (Invalid Hostname)"

Hi. I was trying OmniWeb and have gotten

"Bad Request (Invalid Hostname)"

errors at a site, even though the same error doesn't occur with  
FireFox or Safari.

The site is http://hillaryclinton.com. I thought I would check it out  
after reading articles today.

Not all the clicks give the "Bad Request (Invalid Hostname)" error,  
and after it happens once I can usually reload and get the page. But  
this doesn't seem to be happening with other browsers.

Is this an OmniWeb problem, or a site problem? Any ideas?

Thanks!

doug