AssertionConsumerServiceURL with explicit port number

[Wei Dai]

Hello,

Our SP metadata doesn't include any explicit port numbers (https://alliance-primo-pds.hosted.exlibrisgroup.com/Shibboleth.sso/Metadata). However the SP sends the request with the port number 443 in the AssertionConsumerServiceURL:

<samlp:AuthnRequest xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol" AssertionConsumerServiceURL="https://alliance-primo-pds.hosted.exlibrisgroup.com:443/Shibboleth.sso/SAML2/POST" ....

This doesn't work with the IdPs. How can we remove the port number from the AuthnRequest? I checked the Apache and SP configurations, but didn't find a way to do it. 

Also, we are using a load balancer in front of two application servers where the SPs are installed. 

Thanks in advance, 

Wei

Wei Dai
Manager of Technical and Development Services 
Ex Libris North America 
Wei.dai at exlibrisgroup.com