LTI and grade returns [RELEASE BLOCKER]

Description

Trying to access an LTI ressource under juniper.alpha1. The same course used to work at least under ironwood, hawthorn and ginkgo, probably ficus too.

I get error messages when trying to get the grade back in the gradebook on http://ltiapps.net/test/tc.php

For a more detailed explanation, see https://discuss.openedx.org/t/lti-debugging-and-juniper/1272 where I already explained the issue and wrote some of the error logs I got.

Steps to Reproduce

Use the course attached. The course is in French unfortunately and the answer is 50.

We normally use http://ltiapps.net/test/tc.php in order to test it calling using a launch URL like http://cours-virginie.edulib.org/lti_provider/courses/course-v1:UMontreal+TEST_LTI_01+E2016/block-v1:UMontreal+TEST_LTI_01+E2016+type@sequential+block@1c40b4c92c58421da885bea7a63992e1 for example.

If you use the course, you will have to import it on your juniper.alpha1 system and create your own LTI consumers keys.

Assignee

Xavier Antoviaque

Reporter

Pierre Mailhot

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