Show welcome after OIDC login

[hexylena]

I'm testing release_19.05 currently, and noticed that after logging in with OIDC, we get a blank main panel (normally would be white, I have browser css to make it black.) It would be helpful if this showed the normal welcome.html instead

[hexylena]

@VJalili would you be able to take a look at this? We're getting ready to deploy elixir OIDC with 19.05 and I worry about the user experience here.

[hexylena]

Another note, I accidentally hit refresh today after doing a test, the URL was still set to the elixir callback and it attempted to resubmit that generating an error. If we can redirect to / after the callback this would be optimal I think

[VJalili]

noticed that after logging in with OIDC, we get a blank main panel ... It would be helpful if this showed the normal welcome.html instead

@dannon any thoughts?

galaxy/lib/galaxy/web/base/controller.py

Lines 270 to 272 in 47fd60f

	# TODO: this doesn't properly redirect when login is done
	# (see webapp __ensure_logged_in_user for the initial redirect - not sure why it doesn't redirect to login?)
	login_url = web.url_for(controller="root", action="login")

Another note, I accidentally hit refresh today after doing a test, the URL was still set to the elixir callback and it attempted to resubmit that generating an error.

I wonder if this is related to the previous issue, because after callback is handled that URL should not be available.