Azure AD throwing error on redirect to portal login

[sithara]

Azure AD on redirecting to http://localhost:3000/auth/azureactivedirectory is giving me a BAD URI error 'bad URI(is not URI?): "127.0.0.1:8888"

/home/sithara/.rbenv/versions/2.6.0-dev/lib/ruby/2.7.0/uri/rfc3986_parser.rb:67:in `split'
/home/sithara/.rbenv/versions/2.6.0-dev/lib/ruby/2.7.0/uri/rfc3986_parser.rb:73:in `parse'
/home/sithara/.rbenv/versions/2.6.0-dev/lib/ruby/2.7.0/uri/common.rb:234:in `parse'
/home/sithara/.rbenv/versions/2.6.0-dev/lib/ruby/2.7.0/uri/generic.rb:1543:in `find_proxy'
/home/sithara/.rbenv/versions/2.6.0-dev/lib/ruby/2.7.0/net/http.rb:1109:in `proxy_uri'
/home/sithara/.rbenv/versions/2.6.0-dev/lib/ruby/2.7.0/net/http.rb:1096:in `proxy?'
/home/sithara/.rbenv/versions/2.6.0-dev/lib/ruby/2.7.0/net/http.rb:936:in `connect'
/home/sithara/.rbenv/versions/2.6.0-dev/lib/ruby/2.7.0/net/http.rb:930:in `do_start'
/home/sithara/.rbenv/versions/2.6.0-dev/lib/ruby/2.7.0/net/http.rb:919:in `start'
/home/sithara/.rbenv/versions/2.6.0-dev/lib/ruby/2.7.0/net/http.rb:605:in `start'
/home/sithara/.rbenv/versions/2.6.0-dev/lib/ruby/2.7.0/net/http.rb:481:in `get_response'
/home/sithara/.rbenv/versions/2.6.0-dev/lib/ruby/2.7.0/net/http.rb:458:in `get'
vendor/bundle/ruby/2.7.0/gems/omniauth-azure-activedirectory-1.0.0/lib/omniauth/strategies/azure_activedirectory.rb:169:in `fetch_openid_config'
vendor/bundle/ruby/2.7.0/gems/omniauth-azure-activedirectory-1.0.0/lib/omniauth/strategies/azure_activedirectory.rb:190:in `openid_config'
vendor/bundle/ruby/2.7.0/gems/omniauth-azure-activedirectory-1.0.0/lib/omniauth/strategies/azure_activedirectory.rb:105:in `authorize_endpoint_url'
vendor/bundle/ruby/2.7.0/gems/omniauth-azure-activedirectory-1.0.0/lib/omniauth/strategies/azure_activedirectory.rb:79:in `request_phase'
vendor/bundle/ruby/2.7.0/gems/omniauth-1.9.0/lib/omniauth/strategy.rb:226:in `request_call'
vendor/bundle/ruby/2.7.0/gems/omniauth-1.9.0/lib/omniauth/strategy.rb:188:in `call!'
vendor/bundle/ruby/2.7.0/gems/omniauth-1.9.0/lib/omniauth/strategy.rb:169:in `call'
vendor/bundle/ruby/2.7.0/gems/omniauth-1.9.0/lib/omniauth/builder.rb:64:in `call'
vendor/bundle/ruby/2.7.0/gems/rack-2.0.6/lib/rack/session/abstract/id.rb:232:in `context'
vendor/bundle/ruby/2.7.0/gems/rack-2.0.6/lib/rack/session/abstract/id.rb:226:in `call'
vendor/bundle/ruby/2.7.0/gems/actionpack-5.2.2/lib/action_dispatch/middleware/cookies.rb:670:in `call'
vendor/bundle/ruby/2.7.0/gems/rack-2.0.6/lib/rack/method_override.rb:22:in `call'
vendor/bundle/ruby/2.7.0/gems/clearance-1.16.1/lib/clearance/rack_session.rb:23:in `call'
vendor/bundle/ruby/2.7.0/gems/rack-2.0.6/lib/rack/etag.rb:25:in `call'
vendor/bundle/ruby/2.7.0/gems/rack-2.0.6/lib/rack/conditional_get.rb:25:in `call'
vendor/bundle/ruby/2.7.0/gems/rack-2.0.6/lib/rack/head.rb:12:in `call'
vendor/bundle/ruby/2.7.0/gems/activerecord-5.2.2/lib/active_record/migration.rb:559:in `call'
vendor/bundle/ruby/2.7.0/gems/actionpack-5.2.2/lib/action_dispatch/middleware/callbacks.rb:28:in `block in call'
vendor/bundle/ruby/2.7.0/gems/activesupport-5.2.2/lib/active_support/callbacks.rb:98:in `run_callbacks'
vendor/bundle/ruby/2.7.0/gems/actionpack-5.2.2/lib/action_dispatch/middleware/callbacks.rb:26:in `call'
vendor/bundle/ruby/2.7.0/gems/actionpack-5.2.2/lib/action_dispatch/middleware/executor.rb:14:in `call'
vendor/bundle/ruby/2.7.0/gems/actionpack-5.2.2/lib/action_dispatch/middleware/debug_exceptions.rb:61:in `call'
vendor/bundle/ruby/2.7.0/gems/actionpack-5.2.2/lib/action_dispatch/middleware/show_exceptions.rb:33:in `call'
vendor/bundle/ruby/2.7.0/gems/railties-5.2.2/lib/rails/rack/logger.rb:38:in `call_app'
vendor/bundle/ruby/2.7.0/gems/railties-5.2.2/lib/rails/rack/logger.rb:26:in `block in call'
vendor/bundle/ruby/2.7.0/gems/activesupport-5.2.2/lib/active_support/tagged_logging.rb:71:in `block in tagged'
vendor/bundle/ruby/2.7.0/gems/activesupport-5.2.2/lib/active_support/tagged_logging.rb:28:in `tagged'
vendor/bundle/ruby/2.7.0/gems/activesupport-5.2.2/lib/active_support/tagged_logging.rb:71:in `tagged'
vendor/bundle/ruby/2.7.0/gems/railties-5.2.2/lib/rails/rack/logger.rb:26:in `call'
vendor/bundle/ruby/2.7.0/gems/actionpack-5.2.2/lib/action_dispatch/middleware/remote_ip.rb:81:in `call'
vendor/bundle/ruby/2.7.0/gems/actionpack-5.2.2/lib/action_dispatch/middleware/request_id.rb:27:in `call'
vendor/bundle/ruby/2.7.0/gems/rack-2.0.6/lib/rack/runtime.rb:22:in `call'
vendor/bundle/ruby/2.7.0/gems/activesupport-5.2.2/lib/active_support/cache/strategy/local_cache_middleware.rb:29:in `call'
vendor/bundle/ruby/2.7.0/gems/actionpack-5.2.2/lib/action_dispatch/middleware/executor.rb:14:in `call'
vendor/bundle/ruby/2.7.0/gems/actionpack-5.2.2/lib/action_dispatch/middleware/static.rb:127:in `call'
vendor/bundle/ruby/2.7.0/gems/rack-2.0.6/lib/rack/sendfile.rb:111:in `call'
vendor/bundle/ruby/2.7.0/gems/rack-cors-0.4.1/lib/rack/cors.rb:81:in `call'
vendor/bundle/ruby/2.7.0/gems/railties-5.2.2/lib/rails/engine.rb:524:in `call'
vendor/bundle/ruby/2.7.0/gems/puma-3.7.0/lib/puma/configuration.rb:226:in `call'
vendor/bundle/ruby/2.7.0/gems/puma-3.7.0/lib/puma/server.rb:578:in `handle_request'
vendor/bundle/ruby/2.7.0/gems/puma-3.7.0/lib/puma/server.rb:415:in `process_client'
vendor/bundle/ruby/2.7.0/gems/puma-3.7.0/lib/puma/server.rb:275:in `block in run'
vendor/bundle/ruby/2.7.0/gems/puma-3.7.0/lib/puma/thread_pool.rb:120:in `block in spawn_thread'

I'm running on an ubuntu machine. I'm not sure from where the 8888 port is generated