Shibboleth is a single sign on method used by UK schools.
Shibboleth allows you to log into multiple services without the need to enter your username and password.
Shibboleth WAYFLess URLS is a
knowledge requirement for Shibboleth Service Providers and users. A shibboleth user may use a service frequently and want to skip the Identity provider selection page, a wayfless URL does exactly this.
Example
Copy and paste the above and replace %20 with ?
Another example
What bit do I need to change to configure my service to Primary Logon?
https://wayf.ukfederation.org.uk/shibboleth-wayf/ukfull.wayf?target=cookie
&providerId=urn:mace:ac.uk:sdss.ac.uk:provider:service:target.iay.org.uk
&cache=perm&action=selection
&origin=https://idp.primarylogon.co.uk/idp/shibboleth
&shire=https://target.iay.org.uk/Shibboleth.sso/SAML/POST
The bits in bold need changing.