我已经使用js和html5设计了具有一些自定义功能的html5播放器，现在我需要在html5播放器上添加chrome cast选项，例如 https://raw.githubusercontent.com/kim-company/videojs-chromecast/master/screenshots/chromecast -player.jpg
下面是设计的html5播放器的链接 https://player14123141.herokuapp.com/
谢谢你的帮助。
当我在生产模式下运行我的Rails应用程序时出现以下错误,但是当我在开发模式下运行我的应用程序时它工作正常.我可以在生产模式下使用任何宝石吗？
`require': No such file to load -- test_helper (LoadError)
以下是代码的完整跟踪:
/home/nyros/.rvm/gems/ruby-2.2.0@dfl/gems/activesupport-4.0.2/lib/active_support/dependencies.rb:229:in `require': No such file to load -- test_helper (LoadError)
from /home/nyros/.rvm/gems/ruby-2.2.0@dfl/gems/activesupport-4.0.2/lib/active_support/dependencies.rb:229:in `block in require'
from /home/nyros/.rvm/gems/ruby-2.2.0@dfl/gems/activesupport-4.0.2/lib/active_support/dependencies.rb:214:in `load_dependency'
from /home/nyros/.rvm/gems/ruby-2.2.0@dfl/gems/activesupport-4.0.2/lib/active_support/dependencies.rb:229:in `require'
from /home/nyros/Documents/Projects/DFL/Working/DFL/app/controllers/quarterly_export_statement_test.rb:1:in `<top (required)>'
from /home/nyros/.rvm/gems/ruby-2.2.0@dfl/gems/activesupport-4.0.2/lib/active_support/dependencies.rb:229:in `require'
from /home/nyros/.rvm/gems/ruby-2.2.0@dfl/gems/activesupport-4.0.2/lib/active_support/dependencies.rb:229:in `block in require'
from /home/nyros/.rvm/gems/ruby-2.2.0@dfl/gems/activesupport-4.0.2/lib/active_support/dependencies.rb:214:in `load_dependency'
from /home/nyros/.rvm/gems/ruby-2.2.0@dfl/gems/activesupport-4.0.2/lib/active_support/dependencies.rb:229:in `require'
from /home/nyros/.rvm/gems/ruby-2.2.0@dfl/gems/activesupport-4.0.2/lib/active_support/dependencies.rb:330:in `require_or_load'
from /home/nyros/.rvm/gems/ruby-2.2.0@dfl/gems/activesupport-4.0.2/lib/active_support/dependencies.rb:289:in `depend_on'
from /home/nyros/.rvm/gems/ruby-2.2.0@dfl/gems/activesupport-4.0.2/lib/active_support/dependencies.rb:207:in `require_dependency'
from /home/nyros/.rvm/gems/ruby-2.2.0@dfl/gems/railties-4.0.2/lib/rails/engine.rb:465:in `block (2 levels) in eager_load!'
from /home/nyros/.rvm/gems/ruby-2.2.0@dfl/gems/railties-4.0.2/lib/rails/engine.rb:464:in `each'
from /home/nyros/.rvm/gems/ruby-2.2.0@dfl/gems/railties-4.0.2/lib/rails/engine.rb:464:in `block in eager_load!'
from /home/nyros/.rvm/gems/ruby-2.2.0@dfl/gems/railties-4.0.2/lib/rails/engine.rb:462:in `each'
from /home/nyros/.rvm/gems/ruby-2.2.0@dfl/gems/railties-4.0.2/lib/rails/engine.rb:462:in `eager_load!' …