Corrective action: Add tests for LB initialization
In #332913 (closed) we saw that the Rails 6.1 upgrade affected the LB initialization but we did not have any indication from unit, nor QA tests.
Proposal
Add the approriate tests so that we have coverage for config/initializers/load_balancing.rb, and that LB works for subsequent page loads
Follow-up
Edited by Thong Kuah