Web clip refresh?

Hello,

I use a Web clip widget to view this weather forecast:
http://www.bdb.be/DesktopModules/BDB_Meteo/WeerPrint.aspx

This weather forecast always shows a complete week, starting with "today". When I open this page in normal Safari, I always see the correct image. Lately, the web clip view in my Dashboard doesn't refresh as needed.

With the command line tool 'curl', I dumped the response headers and got this:

{quote}
HTTP/1.1 200 OK
Date: Sun, 18 Apr 2010 14:07:42 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: PleskWin
X-Powered-By: ASP.NET
X-AspNet-Version: 2.0.50727
Set-Cookie: .ASPXANONYMOUS=LPDxWZIVywEkAAAAMTM3ZDg3NTktMmJhOS00NGRjLWJkOTItZjA2NjEyMmEzODQ0 0; expires=Sun, 27-Jun-2010 00:47:42 GMT; path=/; HttpOnly
Set-Cookie: DotNetNukeAnonymous=0ac78663-2f1d-4900-9f05-9b31744e359f; expires=Sun, 18-Apr-2010 14:27:42 GMT; path=/; HttpOnly
Cache-Control: private
Content-Type: text/html; charset=utf-8
Content-Length: 65273
{quote}

Having "Cache-Control: private" means that my local Safari may cache this page. Can I get the web clip behaviour back in line with regular Safari, who seems to behave properly?

Ringo