IOS v6 issue - Failed to receive SAML response by HTTP post

[Etan Weintraub]

One thing I've discovered that changed between iOS5 and iOS6 that may not be what's causing the problem, but might be, is that Apple changed Safari's handling of AJAX calls. This wouldn't impact Shibboleth or SAML itself, but might impact your application, depending on how it's implementing the calls. In iOS5, every time an AJAX call was made, it made the call. In iOS6, they started caching AJAX calls, and you now need to send a some form of "no cache" parameter in the AJAX call (how you do that is completely dependent on what language the application is written in).

Not sure if it applies to your issue or not, but it is something that's different between iOS5 and iOS6 that I've seen and have had to work around.

-Etan E. Weintraub
Sr. Systems Engineer
Directory Architecture
IT at Johns Hopkins
Johns Hopkins at Mt. Washington
5801 Smith Ave.
Suite 3110B
Baltimore, MD 21209
Phone: 410-735-7945
E-mail: eweintra at jhmi.edu<mailto:eweintra at jhmi.edu>

From: users-bounces at shibboleth.net [mailto:users-bounces at shibboleth.net] On Behalf Of Mike Vidal
Sent: Monday, December 10, 2012 2:38 PM
To: users at shibboleth.net
Subject: IOS v6 issue - Failed to receive SAML response by HTTP post

Hi,

Does anyone here have any experience using SAML with IOS v6?  IOS such as tablets and iphones that were using v 5 of the OS and Safari browser were able to connect successfully.  With IOS v6 devices I'm getting reports of messages "Failed to receive SAML response by HTTP post" from the Mediasite SP sometimes.  The IdP in this case is Shibboleth.  I'm very much a SAML beginner so hopefully this isn't too vague.

Mike

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