diff --git a/app/controllers/social_previews_controller.rb b/app/controllers/social_previews_controller.rb
index 019eb6868..93ddcdd1b 100644
--- a/app/controllers/social_previews_controller.rb
+++ b/app/controllers/social_previews_controller.rb
@@ -61,8 +61,9 @@ class SocialPreviewsController < ApplicationController
       end
       format.png do
         html = render_to_string(template, formats: :html, layout: false)
-        redirect_to HtmlCssToImage.fetch_url(html: html, css: PNG_CSS,
-                                             google_fonts: I18n.t("social_previews_controller.fonts")), status: :found
+        url = HtmlCssToImage.fetch_url(html: html, css: PNG_CSS,
+                                       google_fonts: I18n.t("social_previews_controller.fonts"))
+        redirect_to url, allow_other_host: true, status: :found
       end
     end
   end
diff --git a/config/initializers/new_framework_defaults_7_0.rb b/config/initializers/new_framework_defaults_7_0.rb
index 2df967e2a..7a425626d 100644
--- a/config/initializers/new_framework_defaults_7_0.rb
+++ b/config/initializers/new_framework_defaults_7_0.rb
@@ -50,7 +50,7 @@ Rails.application.config.active_support.executor_around_test_case = true
 # Define the isolation level of most of Rails internal state.
 # If you use a fiber based server or job processor, you should set it to `:fiber`.
 # Otherwise the default of `:thread` if preferable.
-# Rails.application.config.active_support.isolation_level = :thread
+Rails.application.config.active_support.isolation_level = :thread
 
 # Set both the `:open_timeout` and `:read_timeout` values for `:smtp` delivery method.
 Rails.application.config.action_mailer.smtp_timeout = 5
@@ -64,10 +64,10 @@ Rails.application.config.active_record.verify_foreign_keys_for_fixtures = true
 # Disable partial inserts.
 # This default means that all columns will be referenced in INSERT queries
 # regardless of whether they have a default or not.
-# Rails.application.config.active_record.partial_inserts = false
+Rails.application.config.active_record.partial_inserts = false
 #
 # Protect from open redirect attacks in `redirect_back_or_to` and `redirect_to`.
-# Rails.application.config.action_controller.raise_on_open_redirects = true
+Rails.application.config.action_controller.raise_on_open_redirects = true
 
 # If you're upgrading and haven't set `cookies_serializer` previously, your cookie serializer
 # was `:marshal`. Convert all cookies to JSON, using the `:hybrid` formatter.