Shibboleth SP3 Problem: xmltooling::IOException setHeader (Header) failed: -2147024809

Cantor, Scott cantor.2 at
Fri Jan 15 00:45:36 UTC 2021

On 1/14/21, 7:28 PM, "users on behalf of Stephen Holland-Chang" <users-bounces at on behalf of stephen at> wrote:

>    Could the \ be causing problems with Shibboleth setting the data into the request header? If so, are there any options
> for escaping that in Shibboleth?

I wouldn't think so but I have no idea what IIS cares about.

You could try applying a Transform AttributeResolver [1] with a regex to detect and replace the backslash as a test of whether it makes a difference or not.

-- Scott


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