UA string.

[Harri Porten]

On Mon, 24 Feb 2003, David Hyatt wrote:

> Safari does not support document.all.  Only Konqueror does.  We do not 
> plan to unconditionally support document.all.  Instead we plan to 
> selectively allow access to the .all property based off whether or not 
> we're using an MSIE-style UA string.

We do the same btw:

  case All:
      // Disable document.all when we try to be Netscape-compatible
      if ( exec->interpreter()->compatMode() ==
Interpreter::NetscapeCompat )
        return Undefined();
      return getHTMLCollection(exec,doc.all());

Harri.