X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/d81ea65da05119d5c6480d373b5d42bbee8ae1ad..2ba51ef35957ceb5c56ec9cbd0a03b12b17a5c48:/apps/workbench/app/controllers/application_controller.rb

diff --git a/apps/workbench/app/controllers/application_controller.rb b/apps/workbench/app/controllers/application_controller.rb
index 98bc53ae46..5c99c15abc 100644
--- a/apps/workbench/app/controllers/application_controller.rb
+++ b/apps/workbench/app/controllers/application_controller.rb
@@ -436,6 +436,10 @@ class ApplicationController < ActionController::Base
       false  # We may redirect to login, or not, based on the current action.
     else
       session[:arvados_api_token] = params[:api_token]
+      # If we later have trouble contacting the API server, we still want
+      # to be able to render basic user information in the UI--see
+      # render_exception above.  We store that in the session here.  This is
+      # not intended to be used as a general-purpose cache.  See #2891.
       session[:user] = {
         uuid: user.uuid,
         email: user.email,