Don't enforce UTF-8 by default

With the disabling of TLS 1.0 by most major websites, continuing to run
IE8 or lower becomes increasingly difficult so default to not enforcing
UTF-8 encoding as it's not relevant to other browsers.

2 files changed, 5 insertions, 3 deletions

diff --git a/actionview/lib/action_view/helpers/form_helper.rb b/actionview/lib/action_view/helpers/form_helper.rb
index e27628f58b..65143efabb 100644
--- a/actionview/lib/action_view/helpers/form_helper.rb
+++ b/actionview/lib/action_view/helpers/form_helper.rb
@@ -1519,10 +1519,10 @@ module ActionView
 
       private
         def html_options_for_form_with(url_for_options = nil, model = nil, html: {}, local: !form_with_generates_remote_forms,
-          skip_enforcing_utf8: false, **options)
+          skip_enforcing_utf8: nil, **options)
           html_options = options.slice(:id, :class, :multipart, :method, :data).merge(html)
           html_options[:method] ||= :patch if model.respond_to?(:persisted?) && model.persisted?
-          html_options[:enforce_utf8] = !skip_enforcing_utf8
+          html_options[:enforce_utf8] = !skip_enforcing_utf8 unless skip_enforcing_utf8.nil?
 
           html_options[:enctype] = "multipart/form-data" if html_options.delete(:multipart)
 
diff --git a/actionview/lib/action_view/helpers/form_tag_helper.rb b/actionview/lib/action_view/helpers/form_tag_helper.rb
index e86e18dd78..5a8b8555a0 100644
--- a/actionview/lib/action_view/helpers/form_tag_helper.rb
+++ b/actionview/lib/action_view/helpers/form_tag_helper.rb
@@ -22,6 +22,8 @@ module ActionView
       mattr_accessor :embed_authenticity_token_in_remote_forms
       self.embed_authenticity_token_in_remote_forms = nil
 
+      mattr_accessor :default_enforce_utf8, default: true
+
       # Starts a form tag that points the action to a url configured with <tt>url_for_options</tt> just like
       # ActionController::Base#url_for. The method for the form defaults to POST.
       #
@@ -866,7 +868,7 @@ module ActionView
               })
             end
 
-          if html_options.delete("enforce_utf8") { true }
+          if html_options.delete("enforce_utf8") { default_enforce_utf8 }
             utf8_enforcer_tag + method_tag
           else
             method_tag