Yossi Dahan [BizTalk]

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Tuesday, December 16, 2008

Never thought Url would be case sensitive

 

Working on my Geneva Framework based STS scenario I’ve stumbled into a very weird and annoying case where by if the user typed a Url in the wrong case (compared to the case of the V-Dir) the browser would enter a circular redirect between the STS and the RP.

 

I’ve started a forum thread, which you can find here, that got an answered by Peter Kron from MS through which I’ve learnt that the path portion of a cookie is case sensitive; you can find this in this RFC spec as well (read 3.3.3) -

…the old  and new Domain attribute values compare equal, using a case-insensitive string-compare; and, the old and new Path attribute values string-compare equal (case-sensitive). …

I don’t know if that’s just me, but I find this really surprising as, as a web user, I was never “trained” to tread urls as case sensitive, but it appears that, according to the spec, any personalisation stored for a particular path might be lost if I enter the wrong url?

In the STS scenario case this would mean potentially me having to login again, although I have already logged in on the STS.

 

Peter suggest to store the cookie against the domain, which is not case sensitive, and is good enough for me (for now?), but I don’t know if that’s realistic for all scenarios…..

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