Problem with button_to_remote on 2.3.2

rubyonrails-talk
1

I have a link_to_remote call which works as expected:     <%= link_to_remote "-", { :url => { :action => :remove_from_cart, :id => cart_item.product} }, { :href => url_for(:action => :remove_from_cart, :id => cart_item.product) } %>

2

'Where is the button problem?