Playlist LTI Share Links Not Working

[joncameron]

Description

• Create a public playlist containing an item authorized for a Canvas course site
• Add the LTI share link for the playlist as an "External URL" module item (with "open in new tab" selected or not)
• When the module item is launched, the user is not authenticated and the user sees the homepage with error messages

Error (after selecting the module item in Canvas with the LTI share link for the playlist)

Same Error for Inline Embed (not "open in new tab")

Done Looks Like

• [x] LTI Share URL for Playlists Work as an External Tool (not URL) within Canvas (Playlist is displayed as expected)
• [ ] Avalon documentation updated to indicate the difference when adding content to the LMS that needs the LTI POST credentials

[joncameron]

Q: Does this also occur when we don't set "open in new tab"? A: Yes.

[joncameron]

Will require investigation; maybe something in Canvas that we missed. Seems unusual that other external URLs from Avalon get authenticated properly. What is it about this route?

[cjcolvar]

I tested this and found that the LTI share links work when added as an "External Tool" but not as an "External Url". Is it important that these work as "External Url" specifically or is "External Tool" sufficient? I think that the LTI params hash isn't being sent with "External Url" and that's why login fails.

[elynema]

@joncameron Do we need to update documentation to be clear that the URLs should be included in Canvas as "External Tool"? Or is this something that used to work and now isn't.

[joncameron]

I'm going to update our documentation as Emily suggested and close this issue.

[joncameron]

https://samvera.atlassian.net/wiki/x/AQBBn