Rails 7.1 upgrade

config/application.rb

@@ -1,20 +1,19 @@
 # frozen_string_literal: true
 
-require_relative 'boot'
+require_relative "boot"
 
-require 'rails'
+require "rails"
 # Pick the frameworks you want:
-require 'active_model/railtie'
-require 'active_job/railtie'
-require 'active_record/railtie'
-require 'active_storage/engine'
-require 'action_controller/railtie'
-require 'action_mailer/railtie'
-# require 'action_mailbox/engine'
-require 'action_text/engine'
-require 'action_view/railtie'
-require 'action_cable/engine'
-require 'sprockets/railtie'
+require "active_model/railtie"
+require "active_job/railtie"
+require "active_record/railtie"
+require "active_storage/engine"
+require "action_controller/railtie"
+require "action_mailer/railtie"
+# require "action_mailbox/engine"
+require "action_text/engine"
+require "action_view/railtie"
+require "action_cable/engine"
 # require "rails/test_unit/railtie"
 
 # Require the gems listed in Gemfile, including any gems
@@ -26,6 +25,11 @@ module Railsondocker
     # Initialize configuration defaults for originally generated Rails version.
     config.load_defaults 7.0
 
+    # Please, add to the `ignore` list any other `lib` subdirectories that do
+    # not contain `.rb` files, or that should not be reloaded or eager loaded.
+    # Common ones are `templates`, `generators`, or `middleware`, for example.
+    config.autoload_lib(ignore: %w(assets tasks))
+
     # Configuration for the application, engines, and railties goes here.
     #
     # These settings can be overridden in specific environments using the files
@@ -33,5 +37,8 @@ module Railsondocker
     #
     # config.time_zone = "Central Time (US & Canada)"
     # config.eager_load_paths << Rails.root.join("extras")
+
+    # Don't generate system test files.
+    config.generators.system_tests = nil
   end
 end

config/boot.rb

@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../Gemfile', __dir__)
+ENV["BUNDLE_GEMFILE"] ||= File.expand_path("../Gemfile", __dir__)
 
-require 'bundler/setup' # Set up gems listed in the Gemfile.
-require 'bootsnap/setup' # Speed up boot time by caching expensive operations.
+require "bundler/setup" # Set up gems listed in the Gemfile.
+require "bootsnap/setup" # Speed up boot time by caching expensive operations.

config/environment.rb

@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 # Load the Rails application.
-require_relative 'application'
+require_relative "application"
 
 # Initialize the Rails application.
 Rails.application.initialize!

config/environments/development.rb

@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-require 'active_support/core_ext/integer/time'
+require "active_support/core_ext/integer/time"
 
 Rails.application.configure do
   # Settings specified here will take precedence over those in config/application.rb.
@@ -8,7 +8,7 @@ Rails.application.configure do
   # In the development environment your application's code is reloaded any time
   # it changes. This slows down response time but is perfect for development
   # since you don't have to restart the web server when you make code changes.
-  config.cache_classes = false
+  config.enable_reloading = true
 
   # Do not eager load code on boot.
   config.eager_load = false
@@ -17,20 +17,20 @@ Rails.application.configure do
   config.consider_all_requests_local = true
 
   # Allow access when running in docker
-  config.web_console.whitelisted_ips = ["172.16.0.0/12", "192.168.0.0/16"]
+  config.web_console.allowed_ips = ["172.16.0.0/12", "192.168.0.0/16"]
 
   # Enable server timing
   config.server_timing = true
 
   # Enable/disable caching. By default caching is disabled.
   # Run rails dev:cache to toggle caching.
-  if Rails.root.join('tmp/caching-dev.txt').exist?
+  if Rails.root.join("tmp/caching-dev.txt").exist?
     config.action_controller.perform_caching = true
     config.action_controller.enable_fragment_cache_logging = true
 
     config.cache_store = :memory_store
     config.public_file_server.headers = {
-      'Cache-Control' => "public, max-age=#{2.days.to_i}"
+      "Cache-Control" => "public, max-age=#{2.days.to_i}"
     }
   else
     config.action_controller.perform_caching = false
@@ -61,6 +61,9 @@ Rails.application.configure do
   # Highlight code that triggered database queries in logs.
   config.active_record.verbose_query_logs = true
 
+  # Highlight code that enqueued background job in logs.
+  config.active_job.verbose_enqueue_logs = true
+
   # Suppress logger output for asset requests.
   config.assets.quiet = true
 
@@ -72,4 +75,7 @@ Rails.application.configure do
 
   # Uncomment if you wish to allow Action Cable access from any origin.
   # config.action_cable.disable_request_forgery_protection = true
+
+  # Raise error when a before_action's only/except options reference missing actions
+  config.action_controller.raise_on_missing_callback_actions = true
 end

config/environments/production.rb

@@ -1,12 +1,12 @@
 # frozen_string_literal: true
 
-require 'active_support/core_ext/integer/time'
+require "active_support/core_ext/integer/time"
 
 Rails.application.configure do
   # Settings specified here will take precedence over those in config/application.rb.
 
   # Code is not reloaded between requests.
-  config.cache_classes = true
+  config.enable_reloading = false
 
   # Eager load code on boot. This eager loads most of Rails and
   # your application in memory, allowing both threaded web servers
@@ -18,13 +18,12 @@ Rails.application.configure do
   config.consider_all_requests_local       = false
   config.action_controller.perform_caching = true
 
-  # Ensures that a master key has been made available in either ENV["RAILS_MASTER_KEY"]
-  # or in config/master.key. This key is used to decrypt credentials (and other encrypted files).
+  # Ensures that a master key has been made available in ENV["RAILS_MASTER_KEY"], config/master.key, or an environment
+  # key such as config/credentials/production.key. This key is used to decrypt credentials (and other encrypted files).
   # config.require_master_key = true
 
-  # Disable serving static files from the `/public` folder by default since
-  # Apache or NGINX already handles this.
-  config.public_file_server.enabled = ENV['RAILS_SERVE_STATIC_FILES'].present? || ENV['RENDER'].present?
+  # Enable static file serving from the `/public` folder (turn off if using NGINX/Apache for it).
+  config.public_file_server.enabled = true
 
   # Compress CSS using a preprocessor.
   # config.assets.css_compressor = :sass
@@ -47,16 +46,26 @@ Rails.application.configure do
   # config.action_cable.url = "wss://example.com/cable"
   # config.action_cable.allowed_request_origins = [ "http://example.com", /http:\/\/example.*/ ]
 
-  # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
-  # config.force_ssl = true
+  # Assume all access to the app is happening through a SSL-terminating reverse proxy.
+  # Can be used together with config.force_ssl for Strict-Transport-Security and secure cookies.
+  # config.assume_ssl = true
 
-  # Include generic and useful information about system operation, but avoid logging too much
-  # information to avoid inadvertent exposure of personally identifiable information (PII).
-  config.log_level = :info
+  # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
+  config.force_ssl = true
+
+  # Log to STDOUT by default
+  config.logger = ActiveSupport::Logger.new(STDOUT)
+    .tap  { |logger| logger.formatter = ::Logger::Formatter.new }
+    .then { |logger| ActiveSupport::TaggedLogging.new(logger) }
 
   # Prepend all log lines with the following tags.
   config.log_tags = [ :request_id ]
 
+  # Info include generic and useful information about system operation, but avoids logging too much
+  # information to avoid inadvertent exposure of personally identifiable information (PII). If you
+  # want to log everything, set the level to "debug".
+  config.log_level = ENV.fetch("RAILS_LOG_LEVEL", "info")
+
   # Use a different cache store in production.
   # config.cache_store = :mem_cache_store
 
@@ -77,50 +86,14 @@ Rails.application.configure do
   # Don't log any deprecations.
   config.active_support.report_deprecations = false
 
-  # Use default logging formatter so that PID and timestamp are not suppressed.
-  config.log_formatter = ::Logger::Formatter.new
-
-  # Use a different logger for distributed setups.
-  # require "syslog/logger"
-  # config.logger = ActiveSupport::TaggedLogging.new(Syslog::Logger.new "app-name")
-
-  if ENV['RAILS_LOG_TO_STDOUT'].present?
-    logger           = ActiveSupport::Logger.new(STDOUT)
-    logger.formatter = config.log_formatter
-    config.logger    = ActiveSupport::TaggedLogging.new(logger)
-  end
-
   # Do not dump schema after migrations.
   config.active_record.dump_schema_after_migration = false
 
-  # Inserts middleware to perform automatic connection switching.
-  # The `database_selector` hash is used to pass options to the DatabaseSelector
-  # middleware. The `delay` is used to determine how long to wait after a write
-  # to send a subsequent read to the primary.
-  #
-  # The `database_resolver` class is used by the middleware to determine which
-  # database is appropriate to use based on the time delay.
-  #
-  # The `database_resolver_context` class is used by the middleware to set
-  # timestamps for the last write to the primary. The resolver uses the context
-  # class timestamps to determine how long to wait before reading from the
-  # replica.
-  #
-  # By default Rails will store a last write timestamp in the session. The
-  # DatabaseSelector middleware is designed as such you can define your own
-  # strategy for connection switching and pass that into the middleware through
-  # these configuration options.
-  # config.active_record.database_selector = { delay: 2.seconds }
-  # config.active_record.database_resolver = ActiveRecord::Middleware::DatabaseSelector::Resolver
-  # config.active_record.database_resolver_context = ActiveRecord::Middleware::DatabaseSelector::Resolver::Session
-
-  # Inserts middleware to perform automatic shard swapping. The `shard_selector` hash
-  # can be used to pass options to the `ShardSelector` middleware. The `lock` option is
-  # used to determine whether shard swapping should be prohibited for the request.
-  #
-  # The `shard_resolver` option is used by the middleware to determine which shard
-  # to switch to. The application must provide a mechanism for finding the shard name
-  # in a proc. See guides for an example.
-  # config.active_record.shard_selector = { lock: true }
-  # config.active_record.shard_resolver = ->(request) { Tenant.find_by!(host: request.host).shard }
+  # Enable DNS rebinding protection and other `Host` header attacks.
+  # config.hosts = [
+  #   "example.com",     # Allow requests from example.com
+  #   /.*\.example\.com/ # Allow requests from subdomains like `www.example.com`
+  # ]
+  # Skip DNS rebinding protection for the default health check endpoint.
+  # config.host_authorization = { exclude: ->(request) { request.path == "/up" } }
 end

config/environments/test.rb

@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-require 'active_support/core_ext/integer/time'
+require "active_support/core_ext/integer/time"
 
 # The test environment is used exclusively to run your application's
 # test suite. You never need to work with it otherwise. Remember that
@@ -10,18 +10,19 @@ require 'active_support/core_ext/integer/time'
 Rails.application.configure do
   # Settings specified here will take precedence over those in config/application.rb.
 
-  # Turn false under Spring and add config.action_view.cache_template_loading = true
-  config.cache_classes = true
+  # While tests run files are not watched, reloading is not necessary.
+  config.enable_reloading = false
 
-  # Eager loading loads your whole application. When running a single test locally,
-  # this probably isn't necessary. It's a good idea to do in a continuous integration
-  # system, or in some way before deploying your code.
+  # Eager loading loads your entire application. When running a single test locally,
+  # this is usually not necessary, and can slow down your test suite. However, it's
+  # recommended that you enable it in continuous integration systems to ensure eager
+  # loading is working properly before deploying your code.
   config.eager_load = ENV["CI"].present?
 
   # Configure public file server for tests with Cache-Control for performance.
   config.public_file_server.enabled = true
   config.public_file_server.headers = {
-    'Cache-Control' => "public, max-age=#{1.hour.to_i}"
+    "Cache-Control" => "public, max-age=#{1.hour.to_i}"
   }
 
   # Show full error reports and disable caching.
@@ -30,7 +31,7 @@ Rails.application.configure do
   config.cache_store = :null_store
 
   # Raise exceptions instead of rendering exception templates.
-  config.action_dispatch.show_exceptions = false
+  config.action_dispatch.show_exceptions = :rescuable
 
   # Disable request forgery protection in test environment.
   config.action_controller.allow_forgery_protection = false
@@ -59,4 +60,7 @@ Rails.application.configure do
 
   # Annotate rendered view with file names.
   # config.action_view.annotate_rendered_view_with_filenames = true
+
+  # Raise error when a before_action's only/except options reference missing actions
+  config.action_controller.raise_on_missing_callback_actions = true
 end

config/initializers/assets.rb

@@ -3,7 +3,7 @@
 # Be sure to restart your server when you modify this file.
 
 # Version of your assets, change this if you want to expire all your assets.
-Rails.application.config.assets.version = '1.0'
+Rails.application.config.assets.version = "1.0"
 
 # Add additional assets to the asset load path.
 # Rails.application.config.assets.paths << Emoji.images_path

config/initializers/content_security_policy.rb

@@ -1,9 +1,10 @@
 # frozen_string_literal: true
+
 # Be sure to restart your server when you modify this file.
 
-# Define an application-wide content security policy
-# For further information see the following documentation
-# https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy
+# Define an application-wide content security policy.
+# See the Securing Rails Applications Guide for more information:
+# https://guides.rubyonrails.org/security.html#content-security-policy-header
 
 # Rails.application.configure do
 #   config.content_security_policy do |policy|
@@ -17,11 +18,10 @@
 #     # policy.report_uri "/csp-violation-report-endpoint"
 #   end
 #
-#   # Generate session nonces for permitted importmap and inline scripts
+#   # Generate session nonces for permitted importmap, inline scripts, and inline styles.
 #   config.content_security_policy_nonce_generator = ->(request) { request.session.id.to_s }
-#   config.content_security_policy_nonce_directives = %w(script-src)
+#   config.content_security_policy_nonce_directives = %w(script-src style-src)
 #
-#   # Report CSP violations to a specified URI. See:
-#   # https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy-Report-Only
+#   # Report violations without enforcing the policy.
 #   # config.content_security_policy_report_only = true
 # end

config/initializers/filter_parameter_logging.rb

@@ -2,7 +2,9 @@
 
 # Be sure to restart your server when you modify this file.
 
-# Configure sensitive parameters which will be filtered from the log file.
+# Configure parameters to be partially matched (e.g. passw matches password) and filtered from the log file.
+# Use this to limit dissemination of sensitive information.
+# See the ActiveSupport::ParameterFilter documentation for supported notations and behaviors.
 Rails.application.config.filter_parameters += [
   :passw, :secret, :token, :_key, :crypt, :salt, :certificate, :otp, :ssn
 ]

config/initializers/inflections.rb

@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 # Be sure to restart your server when you modify this file.
 
 # Add new inflection rules using the following format. Inflections

config/initializers/mime_types.rb

@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+
 # Be sure to restart your server when you modify this file.
 
 # Add new mime types for use in respond_to blocks:

config/initializers/new_framework_defaults_7_1.rb

@@ -0,0 +1,225 @@
+# frozen_string_literal: true
+
+# Be sure to restart your server when you modify this file.
+#
+# This file eases your Rails 7.1 framework defaults upgrade.
+#
+# Uncomment each configuration one by one to switch to the new default.
+# Once your application is ready to run with all new defaults, you can remove
+# this file and set the `config.load_defaults` to `7.1`.
+#
+# Read the Guide for Upgrading Ruby on Rails for more info on each option.
+# https://guides.rubyonrails.org/upgrading_ruby_on_rails.html
+
+# No longer add autoloaded paths into `$LOAD_PATH`. This means that you won't be able
+# to manually require files that are managed by the autoloader, which you shouldn't do anyway.
+# This will reduce the size of the load path, making `require` faster if you don't use bootsnap, or reduce the size
+# of the bootsnap cache if you use it.
+# Rails.application.config.add_autoload_paths_to_load_path = false
+
+# Remove the default X-Download-Options headers since it is used only by Internet Explorer.
+# If you need to support Internet Explorer, add back `"X-Download-Options" => "noopen"`.
+Rails.application.config.action_dispatch.default_headers = {
+  "X-Frame-Options" => "SAMEORIGIN",
+  "X-XSS-Protection" => "0",
+  "X-Content-Type-Options" => "nosniff",
+  "X-Permitted-Cross-Domain-Policies" => "none",
+  "Referrer-Policy" => "strict-origin-when-cross-origin"
+}
+
+# Do not treat an `ActionController::Parameters` instance
+# as equal to an equivalent `Hash` by default.
+Rails.application.config.action_controller.allow_deprecated_parameters_hash_equality = false
+
+# Active Record Encryption now uses SHA-256 as its hash digest algorithm. Important: If you have
+# data encrypted with previous Rails versions, there are two scenarios to consider:
+#
+# 1. If you have +config.active_support.key_generator_hash_digest_class+ configured as SHA1 (the default
+# before Rails 7.0), you need to configure SHA-1 for Active Record Encryption too:
+# Rails.application.config.active_record.encryption.hash_digest_class = OpenSSL::Digest::SHA1
+# 2. If you have +config.active_support.key_generator_hash_digest_class+ configured as SHA256 (the new default
+# in 7.0), then you need to configure SHA-256 for Active Record Encryption:
+Rails.application.config.active_record.encryption.hash_digest_class = OpenSSL::Digest::SHA256
+#
+# If you don't currently have data encrypted with Active Record encryption, you can disable this setting to
+# configure the default behavior starting 7.1+:
+Rails.application.config.active_record.encryption.support_sha1_for_non_deterministic_encryption = false
+
+# No longer run after_commit callbacks on the first of multiple Active Record
+# instances to save changes to the same database row within a transaction.
+# Instead, run these callbacks on the instance most likely to have internal
+# state which matches what was committed to the database, typically the last
+# instance to save.
+Rails.application.config.active_record.run_commit_callbacks_on_first_saved_instances_in_transaction = false
+
+# Configures SQLite with a strict strings mode, which disables double-quoted string literals.
+#
+# SQLite has some quirks around double-quoted string literals.
+# It first tries to consider double-quoted strings as identifier names, but if they don't exist
+# it then considers them as string literals. Because of this, typos can silently go unnoticed.
+# For example, it is possible to create an index for a non existing column.
+# See https://www.sqlite.org/quirks.html#double_quoted_string_literals_are_accepted for more details.
+Rails.application.config.active_record.sqlite3_adapter_strict_strings_by_default = true
+
+# Disable deprecated singular associations names
+Rails.application.config.active_record.allow_deprecated_singular_associations_name = false
+
+# Enable the Active Job `BigDecimal` argument serializer, which guarantees
+# roundtripping. Without this serializer, some queue adapters may serialize
+# `BigDecimal` arguments as simple (non-roundtrippable) strings.
+#
+# When deploying an application with multiple replicas, old (pre-Rails 7.1)
+# replicas will not be able to deserialize `BigDecimal` arguments from this
+# serializer. Therefore, this setting should only be enabled after all replicas
+# have been successfully upgraded to Rails 7.1.
+Rails.application.config.active_job.use_big_decimal_serializer = true
+
+# Specify if an `ArgumentError` should be raised if `Rails.cache` `fetch` or
+# `write` are given an invalid `expires_at` or `expires_in` time.
+# Options are `true`, and `false`. If `false`, the exception will be reported
+# as `handled` and logged instead.
+Rails.application.config.active_support.raise_on_invalid_cache_expiration_time = true
+
+# Specify whether Query Logs will format tags using the SQLCommenter format
+# (https://open-telemetry.github.io/opentelemetry-sqlcommenter/), or using the legacy format.
+# Options are `:legacy` and `:sqlcommenter`.
+Rails.application.config.active_record.query_log_tags_format = :sqlcommenter
+
+# Specify the default serializer used by `MessageEncryptor` and `MessageVerifier`
+# instances.
+#
+# The legacy default is `:marshal`, which is a potential vector for
+# deserialization attacks in cases where a message signing secret has been
+# leaked.
+#
+# In Rails 7.1, the new default is `:json_allow_marshal` which serializes and
+# deserializes with `ActiveSupport::JSON`, but can fall back to deserializing
+# with `Marshal` so that legacy messages can still be read.
+#
+# In Rails 7.2, the default will become `:json` which serializes and
+# deserializes with `ActiveSupport::JSON` only.
+#
+# Alternatively, you can choose `:message_pack` or `:message_pack_allow_marshal`,
+# which serialize with `ActiveSupport::MessagePack`. `ActiveSupport::MessagePack`
+# can roundtrip some Ruby types that are not supported by JSON, and may provide
+# improved performance, but it requires the `msgpack` gem.
+#
+# For more information, see
+# https://guides.rubyonrails.org/v7.1/configuring.html#config-active-support-message-serializer
+#
+# If you are performing a rolling deploy of a Rails 7.1 upgrade, wherein servers
+# that have not yet been upgraded must be able to read messages from upgraded
+# servers, first deploy without changing the serializer, then set the serializer
+# in a subsequent deploy.
+Rails.application.config.active_support.message_serializer = :json_allow_marshal
+
+# Enable a performance optimization that serializes message data and metadata
+# together. This changes the message format, so messages serialized this way
+# cannot be read by older versions of Rails. However, messages that use the old
+# format can still be read, regardless of whether this optimization is enabled.
+#
+# To perform a rolling deploy of a Rails 7.1 upgrade, wherein servers that have
+# not yet been upgraded must be able to read messages from upgraded servers,
+# leave this optimization off on the first deploy, then enable it on a
+# subsequent deploy.
+Rails.application.config.active_support.use_message_serializer_for_metadata = true
+
+# Set the maximum size for Rails log files.
+#
+# `config.load_defaults 7.1` does not set this value for environments other than
+# development and test.
+#
+if Rails.env.local?
+  Rails.application.config.log_file_size = 100 * 1024 * 1024
+end
+
+# Enable raising on assignment to attr_readonly attributes. The previous
+# behavior would allow assignment but silently not persist changes to the
+# database.
+Rails.application.config.active_record.raise_on_assign_to_attr_readonly = true
+
+# Enable validating only parent-related columns for presence when the parent is mandatory.
+# The previous behavior was to validate the presence of the parent record, which performed an extra query
+# to get the parent every time the child record was updated, even when parent has not changed.
+Rails.application.config.active_record.belongs_to_required_validates_foreign_key = false
+
+# Enable precompilation of `config.filter_parameters`. Precompilation can
+# improve filtering performance, depending on the quantity and types of filters.
+Rails.application.config.precompile_filter_parameters = true
+
+# Enable before_committed! callbacks on all enrolled records in a transaction.
+# The previous behavior was to only run the callbacks on the first copy of a record
+# if there were multiple copies of the same record enrolled in the transaction.
+Rails.application.config.active_record.before_committed_on_all_records = true
+
+# Disable automatic column serialization into YAML.
+# To keep the historic behavior, you can set it to `YAML`, however it is
+# recommended to explicitly define the serialization method for each column
+# rather than to rely on a global default.
+Rails.application.config.active_record.default_column_serializer = nil
+
+# Enable a performance optimization that serializes Active Record models
+# in a faster and more compact way.
+#
+# To perform a rolling deploy of a Rails 7.1 upgrade, wherein servers that have
+# not yet been upgraded must be able to read caches from upgraded servers,
+# leave this optimization off on the first deploy, then enable it on a
+# subsequent deploy.
+Rails.application.config.active_record.marshalling_format_version = 7.1
+
+# Run `after_commit` and `after_*_commit` callbacks in the order they are defined in a model.
+# This matches the behaviour of all other callbacks.
+# In previous versions of Rails, they ran in the inverse order.
+Rails.application.config.active_record.run_after_transaction_callbacks_in_order_defined = true
+
+# Whether a `transaction` block is committed or rolled back when exited via `return`, `break` or `throw`.
+#
+Rails.application.config.active_record.commit_transaction_on_non_local_return = true
+
+# Controls when to generate a value for <tt>has_secure_token</tt> declarations.
+#
+Rails.application.config.active_record.generate_secure_token_on = :initialize
+
+# ** Please read carefully, this must be configured in config/application.rb **
+# Change the format of the cache entry.
+# Changing this default means that all new cache entries added to the cache
+# will have a different format that is not supported by Rails 7.0
+# applications.
+# Only change this value after your application is fully deployed to Rails 7.1
+# and you have no plans to rollback.
+# When you're ready to change format, add this to `config/application.rb` (NOT
+# this file):
+#   config.active_support.cache_format_version = 7.1
+
+# Configure Action View to use HTML5 standards-compliant sanitizers when they are supported on your
+# platform.
+#
+# `Rails::HTML::Sanitizer.best_supported_vendor` will cause Action View to use HTML5-compliant
+# sanitizers if they are supported, else fall back to HTML4 sanitizers.
+#
+# In previous versions of Rails, Action View always used `Rails::HTML4::Sanitizer` as its vendor.
+#
+Rails.application.config.action_view.sanitizer_vendor = Rails::HTML::Sanitizer.best_supported_vendor
+
+# Configure Action Text to use an HTML5 standards-compliant sanitizer when it is supported on your
+# platform.
+#
+# `Rails::HTML::Sanitizer.best_supported_vendor` will cause Action Text to use HTML5-compliant
+# sanitizers if they are supported, else fall back to HTML4 sanitizers.
+#
+# In previous versions of Rails, Action Text always used `Rails::HTML4::Sanitizer` as its vendor.
+#
+Rails.application.config.action_text.sanitizer_vendor = Rails::HTML::Sanitizer.best_supported_vendor
+
+# Configure the log level used by the DebugExceptions middleware when logging
+# uncaught exceptions during requests
+Rails.application.config.action_dispatch.debug_exception_log_level = :error
+
+# Configure the test helpers in Action View, Action Dispatch, and rails-dom-testing to use HTML5
+# parsers.
+#
+# Nokogiri::HTML5 isn't supported on JRuby, so JRuby applications must set this to :html4.
+#
+# In previous versions of Rails, these test helpers always used an HTML4 parser.
+#
+Rails.application.config.dom_testing_default_html_version = :html5

config/initializers/permissions_policy.rb

@@ -1,12 +1,15 @@
 # frozen_string_literal: true
+
+# Be sure to restart your server when you modify this file.
+
 # Define an application-wide HTTP permissions policy. For further
-# information see https://developers.google.com/web/updates/2018/06/feature-policy
-#
-# Rails.application.config.permissions_policy do |f|
-#   f.camera      :none
-#   f.gyroscope   :none
-#   f.microphone  :none
-#   f.usb         :none
-#   f.fullscreen  :self
-#   f.payment     :self, "https://secure.example.com"
+# information see: https://developers.google.com/web/updates/2018/06/feature-policy
+
+# Rails.application.config.permissions_policy do |policy|
+#   policy.camera      :none
+#   policy.gyroscope   :none
+#   policy.microphone  :none
+#   policy.usb         :none
+#   policy.fullscreen  :self
+#   policy.payment     :self, "https://secure.example.com"
 # end