You could include a javascript function in the wrapper and call it from 
externalInterface.call. Something like...

function UrlExists(url)
{
  var http = new XMLHttpRequest();
  http.open('HEAD', url, false);
  http.send();
  return http.status!=404;
}

HTH



Steve


--- In flexcoders@yahoogroups.com, "stephen_anson" <s...@...> wrote:
>
> Hi,
> 
> The server side dev team have asked if I can send a HEAD request to their 
> home page in order to 'keep my flex app logged in'
> 
> What is the best way of going about this.
> URLRequest will not allow the method as  a "HEAD" as far as I can see.
> 
> And URLLoader returns the html data, I basically need to send only
> 
> Any ideas much appreciated
> 
> thanks Steve
>


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