ruby on rails - link_to :confirm displays popup twice

Question

This tag with rails 3

<%= link_to 'Destroy', item, :method => :delete,:confirm=>'Are you sure?' %>

produces this html

<a href="/news/3" data-confirm="Are you sure?" data-method="delete" rel="nofollow">Destroy</a>

The entry is deleted, the problem is that the popup appears twice.

What could be causing this?

Answer 1

I was having this same issue, and spent the better part of an hour looking into it. I found a solution in my situation, and I figured I would share it in case it helps...

My problem was that I had

config.assets.debug = true 

in config/environments/development.rb

Changing that line to

config.assets.debug = false

fixed the confirmation duplication for me. I found the relevant information in this rails guide to asset pipeline. Hope it helps!