Cover-spin 引导程序在 Rails 4.2 生产模式下不起作用

Question

目前我的应用程序正在开发模式下运行。我正在更改为生产模式。更改生产模式后，页面继续旋转，背景我看到徽标图像登录页面。我尝试了多种选项来解决此问题，但没有任何效果。如果我删除了正在加载的封面旋转 div 页面。

似乎 JS 和 Css 没有正确加载。

在运行以下命令时，我也没有看到任何问题。

耙子资产：预编译 --trace RAILS_ENV=production

生产.rb

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

  # Eager load code on boot. This eager loads most of Rails and
  # your application in memory, allowing both threaded web servers
  # and those relying on copy on write to perform better.
  # Rake tasks automatically ignore this option for performance.
  config.eager_load = true

  # Full error reports are disabled and caching is turned on.
  config.consider_all_requests_local       = false
  config.action_controller.perform_caching = true

  # Enable Rack::Cache to put a simple HTTP cache in front of your application
  # Add `rack-cache` to your Gemfile before enabling this.
  # For large-scale production use, consider using a caching reverse proxy like nginx, varnish or squid.
  # config.action_dispatch.rack_cache = true

  # Disable Rails's static asset server (Apache or nginx will already do this).
  #  config.serve_static_assets = false



  # Compress JavaScripts and CSS.
  #config.assets.js_compressor = :uglifier

  #config.assets.js_compressor = Uglifier.new(harmony: true)
  #config.public_file_server.enabled = ENV['RAILS_SERVE_STATIC_FILES'].present?

  # Compress JavaScripts and CSS.
  config.assets.uglifier = { harmony: true }
  #config.assets.js_compressor = :uglifier
  
  # config.assets.css_compressor = :sass

  # Do not fallback to assets pipeline if a precompiled asset is missed.


  config.assets.compile = true
  #config.assets.precompile += %w( application.css.scss )

  # Generate digests for assets URLs.
  config.assets.digest = true


  # `config.assets.precompile` and `config.assets.version` have moved to config/initializers/assets.rb

  # Specifies the header that your server uses for sending files.
  # config.action_dispatch.x_sendfile_header = "X-Sendfile" # for apache
  # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for nginx

  # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
  config.force_ssl = true

  # Set to :debug to see everything in the log.
  config.log_level = :info

  # Prepend all log lines with the following tags.
  # config.log_tags = [ :subdomain, :uuid ]

  # Use a different logger for distributed setups.
  # config.logger = ActiveSupport::TaggedLogging.new(SyslogLogger.new)

  # Use a different cache store in production.
  # config.cache_store = :mem_cache_store

  # Enable serving of images, stylesheets, and JavaScripts from an asset server.
  # config.action_controller.asset_host = "http://assets.example.com"

  # Ignore bad email addresses and do not raise email delivery errors.
  # Set this to true and configure the email server for immediate delivery to raise delivery errors.
  # config.action_mailer.raise_delivery_errors = false

  # Enable locale fallbacks for I18n (makes lookups for any locale fall back to
  # the I18n.default_locale when a translation cannot be found).
  config.i18n.fallbacks = true

  # Send deprecation notices to registered listeners.
  config.active_support.deprecation = :notify

  # Disable automatic flushing of the log to improve performance.
  # config.autoflush_log = false

  # Use default logging formatter so that PID and timestamp are not suppressed.
  config.log_formatter = ::Logger::Formatter.new

  # Do not dump schema after migrations.
  config.active_record.dump_schema_after_migration = false

  config.action_mailer.delivery_method= :smtp
  config.action_mailer.smtp_settings={
      address:              'x.x.x',
      domain:               'x.x.x',
  }

end

宝石文件

source 'https://rubygems.org'

gem 'devise'
gem 'jwt'
gem 'omniauth-azure-activedirectory-v2'
gem 'devise'
# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'

# Use sqlite3 as the database for Active Record
gem 'sqlite3', '~> 1.3.13'
gem 'pg', '~> 0.20.0'
# Use SCSS for stylesheets
gem 'sass-rails', '~> 4.0.3'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'
# Use CoffeeScript for .js.coffee assets and views
gem 'coffee-rails', '~> 4.0.0'
# See https://github.com/sstephenson/execjs#readme for more supported runtimes
# gem 'therubyracer',  platforms: :ruby

# Use jquery as the JavaScript library
gem 'jquery-rails'
# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
gem 'turbolinks'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 2.0'
# bundle exec rake doc:rails generates the API under doc/api.
gem 'sdoc', '~> 0.4.0',          group: :doc

# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'

=begin
group :assets do
 gem 'jquery-datatables-rails', github: 'rweng/jquery-datatables-rails'
end
=end

gem 'curb'

gem 'json_converter'

# Use unicorn as the app server
#gem 'unicorn'

gem 'puma'
#gem "passenger", ">= 5.0.25", require: "phusion_passenger/rack_handler"

gem 'httparty'

gem 'will_paginate'
# Use Capistrano for deployment
# gem 'capistrano-rails', group: :development

gem 'sidekiq'
gem 'sinatra', require: false
gem 'slim'

gem 'rest-client'

# Use debugger
# gem 'debugger', group: [:development, :test]

# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem 'tzinfo-data', platforms: [:mingw, :mswin]

gem 'figaro'

gem 'bootstrap-sass'

gem 'roo', '~> 2.4.0'

gem 'nokogiri'

gem 'redis', '~>3.2'

gem 'jquery-ui-rails'

gem  'carrierwave'

gem  'net-ldap'

gem 'bcrypt'

gem 'savon'

gem 'snmp', '~> 1.2'

gem 'oauth', '~> 0.5.1'

gem 'multi_json', '~> 1.11', '>= 1.11.2'

gem 'resque'

gem 'rails'

gem 'activejob_backport'

gem 'chartkick'

gem 'resque-scheduler'

gem "font-awesome-rails"

gem 'font-awesome-sass'

gem 'less-rails'

gem 'less-rails-bootstrap'

gem 'therubyracer'

gem 'nprogress-rails'

gem 'resque-pool', '~> 0.6.0'

gem 'groupdate'

gem 'active_record_union'

gem 'bootstrap-datepicker-rails'

gem 'quiet_assets'

gem 'omniauth', '~> 1.6', '>= 1.6.1'

gem 'elasticsearch'

应用程序.css.sass

*= require_tree .
*= require_self
*= require font-awesome
*= require nprogress
*= require nprogress-bootstrap
*/