Merge pull request #3017 from betagouv/fix-missing-host-in-email-assets

config: fix email assets not having the full URL domain prepended

config/environments/development.rb

@@ -46,6 +46,13 @@ Rails.application.configure do
 
   # Action Mailer settings
   config.action_mailer.delivery_method = :letter_opener_web
+  # Configure default root URL for generating URLs to routes
+  config.action_mailer.default_url_options = {
+    host: 'localhost',
+    port: 3000
+  }
+  # Configure default root URL for email assets
+  config.action_mailer.asset_host = "http://" + ENV['APP_HOST']
 
   Rails.application.routes.default_url_options = {
     host: 'localhost',

config/environments/production.rb

@@ -81,10 +81,13 @@ Rails.application.configure do
     config.action_mailer.delivery_method = :mailjet
   end
 
+  # Configure default root URL for generating URLs to routes
   config.action_mailer.default_url_options = {
     protocol: :https,
     host: ENV['APP_HOST']
   }
+  # Configure default root URL for email assets
+  config.action_mailer.asset_host = "https://" + ENV['APP_HOST']
 
   # Enable locale fallbacks for I18n (makes lookups for any locale fall back to
   # the I18n.default_locale when a translation cannot be found).