Re: Error using SAML authentication

Hi,

in the body of that message there will be a Javascript code that will redirect browser to your IdP. But SAML  is available for web services based on SOAP. So I would look there. Especially, have a look at ECP profile.

Configuring Support for Enhanced Client or Proxy - User Authentication and Single Sign-On - SAP Library

One of the use cases is: "The client does not support JavaScript, preventing auto form post".

Another option is to use back-channel communication. In this case SP communicates directly with IdP. I assume that in your case you are using front-end communication.

http://help.sap.com/saphelp_nw73ehp1/helpdata/en/4a/b5bab122526d6de10000000a42189c/content.htm?frameset=/en/4a/b5bbd422526d6de10000000a42189c/frameset.htm&current_toc=/en/1c/ad1640033ae569e10000000a155106/plain.htm&node_id=174

Cheers