Why are cookies unrecognized when a link is clicked from an external source (i.e. Excel, Word, etc..

Posted by Nick on Stack Overflow See other posts from Stack Overflow or by Nick
Published on 2010-04-16T14:23:04Z Indexed on 2010/04/18 14:43 UTC
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php

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cookies

I noticed that when a link is clicked externally from the web browser, such as from Excel or Word, that my session cookie is initially unrecognized, even if the link opens up in a new tab of the same browser window.

The browser ends up recognizing its cookie eventually, but I am puzzled as to why that initial link from Excel or Word doesn't work. To make it even more challenging, clicking a link works fine from Outlook.

Does anybody know why this might be happening? I'm using the Zend Framework with PHP 5.3.

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