Hi,
> Probably a HEAD request is the one that will return the least amount of
> indication and still show that the service ASMX page is available.
> -- Peter
I did an example of that some time ago for the JavaScript newsgroup:
http://www.galasoft-lb.ch/myjavascript/IsUrlActive/check-url.txt
demo here:
http://www.galasoft-lb.ch/myjavascript/IsUrlActive/
HTH,
Laurent

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Laurent Bugnion [MVP ASP.NET]
Software engineering, Blog: http://www.galasoft.ch
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Laurent Bugnion, MVP - 28 Jul 2007 21:43 GMT
Hi again,
> Hi,
>
[quoted text clipped - 8 lines]
> demo here:
> http://www.galasoft-lb.ch/myjavascript/IsUrlActive/
Sorry, try rather that one:
http://www.galasoft.ch/myjavascript/IsUrlActive/
XmlHttpRequest can only ping the domain of origin for security reason.
galasoft-lb.ch and galasoft.ch are both pointing to the same server, BUT
the client doesn't know this, and throws an error when galasoft-lb.ch
tries to ping galasoft.ch...
Greetings,
Laurent

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Laurent Bugnion [MVP ASP.NET]
Software engineering, Blog: http://www.galasoft.ch
PhotoAlbum: http://www.galasoft.ch/pictures
Support children in Calcutta: http://www.calcutta-espoir.ch