Hello, Just upgraded to rails 4 and Bootstrap 3. Everything working fine except the following line in assets/javascripts/questions.js.coffee: $('#jumbotron').css('background-image' :'url("assets/Jumbotron2.png")') Works in development but not production on Heroku. Image just does not show up on Heroku. Tried $('#jumbotron').css('background-image' :url(<%= asset_path 'Jumbotron2.png' %>)) which also worked in dev but not production. Changing application.js to application.js.erb crashed heroku. Any ideas? Thanks, Dave Castellano -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/5570adb16a376541febd1bfeebbb4f13%40ruby-forum.com. For more options, visit https://groups.google.com/d/optout.