0c164ad4c2
This changes the "Sign out" link on Studio to point to Studio's own logout view, which clears the session and then redirects to LMS's logout page. The LMS logout page then skips loading the Studio logout because it is seen in the Referer header. This change also brings Studio better into line with how other IDAs perform their logouts. Background: After the rollout of Studio OAuth, logouts initiated on Studio failed to actually log out Studio (but all other IDAs were logged out). This was because the LMS logout view loads the logout pages of other IDAs but skips any that is a *prefix* match on the Referer header, and browsers now often send a truncated version of the Referer for privacy. Therefore, Studio was always skipped when coming from Studio. The fix is to make sure that Studio has already performed its logout by the time the LMS logout page is loaded. One wrinkle here is that the LMS logout view is activated by `/logout`, but the correct logout view (provided by auth_backends) is activated by `/logout/` -- with a trailing slash. This is fragile and unfortunate, but can be cleaned up when we later remove other leftovers of Studio's previous ability to handle logistration. ref: ARCHBOM-1897
This is the core repository of the Open edX software. It includes the LMS
(student-facing, delivering courseware), and Studio (course authoring)
components.
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-------------------
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