Our goal is to allow students to be able to export badges to Mozilla Backpack so that they can be shared on social media. It is possible to connect to Mozilla Backpack through Moodle, but when the "Add to Backpack" button under an issued badge is clicked, we get an error that states: "We have encountered the following problem: Tried to get undefined file at undefined and got an HTTP undefined". Additionally, if we download the badge instead and try to manually upload it to Mozilla Backpack, we get an error that states "could not get assertion: invalid http response". The image below displays the issue:
My research indicates that this may have been a bug two or three years ago, but I haven't seen any discussion related to it in recent times. Does anyone know what might be possibly causing this issue? We followed all of the instructions portrayed here, so we are sure that the settings should be set correctly. We are using Moodle 2.9. Any help is appreciated!