I am experimenting with using the "Homework Submission" feature for external LTI tools. After incorporating it, I had a few questions.
1) I can successfully have my server generate a URL, but Canvas doesn't seem to accept it. Something about a bad request? Is this because I didn't set something correct? In case it helps, here's the form parameters:
And the error message:
Invalid submission[submission_type] given
2) Is there any way to disable the "File Upload" tab, or make it later in the list of options? I feel like users will be easily confused when it comes time to submit, and will upload the files instead of using the LTI tool.