This kind of relates to something I was mulling over. If you link to a third party site, how do you guarantee that you don't get a 404 response? I can't think of any other solution short of periodically "pinging" that url and checking the response. In theory just checking the content-type and content-length from the request should give you enough information to at least highlight this as a problem.
<br><br>The argument could be made that if you're going to be relying on a third-party, then some form of formal arrangement should be made between the two parties.<br><br>Cheers,<br>Brad<br><br><div><span class="gmail_quote">
On 5/8/07, <b class="gmail_sendername">Andy Mabbett</b> <<a href="mailto:andy@pigsonthewing.org.uk">andy@pigsonthewing.org.uk</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
In message <<a href="mailto:A8233CF8-74E5-4886-B816-C221C18776D9@makedatamakesense.com">A8233CF8-74E5-4886-B816-C221C18776D9@makedatamakesense.com</a>>,<br>Scott Reynen <<a href="mailto:scott@makedatamakesense.com">
scott@makedatamakesense.com</a>> writes<br><br>>On May 8, 2007, at 10:22 AM, Chris Griego wrote:<br>><br>>> rel-enclosure was ruled out because it's not always a download, but<br>>> sometimes a way to purchase, right? What if hAudio suggested the use
<br>>> of rel-enclosure for downloads and rel-payment for ways to purchase?<br>><br>>I think this is an excellent idea. In addition to re-using existing<br>>microformats, knowing whether a link is a direct download or a
<br>>purchase form would allow tools to provide more useful options to<br>>users.<br><br>I can foresee problems.<br><br>Suppose a publisher links to a third-party site, offering an audio track<br>as a free sample (or vice versa). Later, that latter site decides to
<br>start charging for the track - how would the publisher know that their<br>site is no longer correct?<br><br>--<br>Andy Mabbett<br> * Say "NO!" to compulsory ID Cards: <<a href="http://www.no2id.net/">
http://www.no2id.net/</a>><br> * Free Our Data: <<a href="http://www.freeourdata.org.uk">http://www.freeourdata.org.uk</a>><br> * Are you using Microformats, yet: <<a href="http://microformats.org/">
http://microformats.org/</a>> ?<br>_______________________________________________<br>microformats-new mailing list<br><a href="mailto:microformats-new@microformats.org">microformats-new@microformats.org</a><br><a href="http://microformats.org/mailman/listinfo/microformats-new">
http://microformats.org/mailman/listinfo/microformats-new</a><br></blockquote></div><br>