Multiple failures in Charts QA pipelines due to Page did not fully load

Summary

Failing job(s): https://gitlab.com/gitlab-org/charts/gitlab/-/pipelines/694749750, e.g. https://gitlab.com/gitlab-org/charts/gitlab/-/jobs/3322933405

A lot of specs are failing with Page did not fully load in CNG QA pipelines. Based on screenshots, pages are indeed still loading, potentially an environment issue. Needs further investigation.

Stack trace

2) Plan Default issue templates uses default template when creating an issue
     Failure/Error:
       Resource::Issue.fabricate_via_api! do |issue|
         # Clears default description so as not to overwrite default template
         issue.description = nil
         issue.project = default_template_project
       end.visit!
     
     QA::Support::Repeater::WaitExceededError:
       Page did not fully load. This could be due to an unending async request or loading icon.
     # ./qa/support/repeater.rb:74:in `repeat_until'
     # ./qa/support/waiter.rb:20:in `wait_until'
     # ./qa/support/wait_for_requests.rb:11:in `wait_for_requests'
     # ./qa/resource/base.rb:193:in `visit!'
     # ./qa/specs/features/ee/browser_ui/2_plan/issue/default_issue_template_spec.rb:31:in `block (3 levels) in <module:QA>'
     # ./qa/specs/spec_helper.rb:145:in `block (2 levels) in <top (required)>'
     # ./qa/specs/knapsack_runner.rb:15:in `run'
     # ./qa/specs/runner.rb:57:in `perform'
     # ./qa/scenario/template.rb:10:in `block in perform'
     # ./qa/scenario/template.rb:8:in `tap'
     # ./qa/scenario/template.rb:8:in `perform'
     # ./qa/scenario/template.rb:50:in `perform'

Screenshot / HTML page

Possible fixes