Requirements: Run your site with public access and HTTPS (use ngrok or similar). One account set up on https://badgr.com/ .  Testing scenario: Login as admin Go to "Site administration > Server > OAuth 2 services" Create an "Open Badges" service with the following information: Name: Badgr Service base URL: https://badgr.com/ Go to "Site administration > Badges > Manage backpacks" Create a new backpack with the following information: Backpack API: https://badgr.com Backpack URL: https://badgr.com API version supported: Open Badges v2.1 OAuth 2 services: Badgr Create a badge, publish it and award it to the admin user. Go to the user preferences page. Access to "Backpack settings". Select "https://badgr.com" from the list and connect using a valid user account in Badgr.com.  Go to the user profile page and access the badge you've been awarded. Click the "Add to backpack" button. Check the following error is displayed: Error: Method Not Allowed. Message: Request method 'POST' not supported