GRN2-xx: Bypass SAFE_HOSTS on dev and test environments

config/environments/development.rb

@@ -78,4 +78,6 @@ Rails.application.configure do
   # Use an evented file watcher to asynchronously detect changes in source code,
   # routes, locales, etc. This feature depends on the listen gem.
   config.file_watcher = ActiveSupport::EventedFileUpdateChecker
+
+  config.hosts = nil
 end

config/environments/test.rb

@@ -57,4 +57,6 @@ Rails.application.configure do
   config.loadbalanced_configuration = false
 
   config.registration_method_default = config.registration_methods[:open]
+
+  config.hosts = nil
 end