Log in as student in incognito window

[Per Hallgren]

It would be nice if instead of a <button>, the "Log in as this student" button can be an <a>, so that it can be right-clicked and opened in an incognito window. I guess right now there's some authentication check for this feature, but it could be a one-time link instead.

This would save quite some time if you have to fiddle around with several students :)

[Evgeny Kotelnikov]

I guess right now there's some authentication check for this feature, but it could be a one-time link instead.

Yes, there is a check for grader's privileges and the CSRF-token.

Several people complained that student impersonation logs you out. This sounds like an easy temporary fix for it!