This LTI® v1.3 Reference Implementation Test Tool is provided by IMS Global Learning Consortium. Limited functionality is provided free of charge. IMS Members have access to the complete functionality of the tool including services and message types. Join now to experience full functionality of the tool, technical support and certification. If you are an existing member login here for full access.

Initiating Login from Tool for 2019-07-09_09-02-11.BBDNLtiToolSetup.PartI.mp4

LTI Spec Notes
The parameters can either be passed as query parameters using the HTTP GET method or be passed as HTML form values that are auto-submitted in the User Agent, and thus are transmitted via the HTTP POST method.
OpenID Connect Spec Notes
The parameters can either be passed as query parameters using the HTTP GET method or be passed as HTML form values that are auto-submitted in the User Agent, and thus are transmitted via the HTTP POST method.
Please configure a Tool Login Initiation URL on your Resource Link.

In the real world, this would be configured in a Tool settings type configuration (not per Resource Link).