Question

Initially no confirm was coming up.
I found that adding //= query_ujs to my asset manifold resolved this.
However… now I find that the confirm dialog takes “2 clicks” to use (either the cancel or the ok buttons).

My manifest looks like this:

//= require jquery
//= require jquery-ui
//
// ujs needed for delete confirm dial boxes.
//= require jquery_ujs

Whether it’s cancel or OK, it takes two clicks.
The Rails code for the delete button

= button_to '', schedule_path(schedule), 
:method => 'delete', 
:confirm => 'Are you sure you want to delete this schedule?', 
:class => 'deleteicon', 
:title => "Delete #{name}"

Resulting HTML:

<form action="/schedule/719" class="button_to" method="post">
  <div>
    <input name="_method" value="delete" type="hidden">
    <input class="deleteicon" data-confirm="Are you sure you want to delete this schedule?" title="Delete Shedule A" value="" type="submit">
    <input name="authenticity_token" value="wpcofEiLu6NXymHj289XGahTTT1XqNI56XvBlAFq2G8=" type="hidden">
  </div>
</form>

js for page header:

<script src="/assets/jquery.js?body=1" type="text/javascript"></script>
<script src="/assets/jquery-ui.js?body=1" type="text/javascript"></script>
<script src="/assets/jquery_ujs.js?body=1" type="text/javascript"></script>
<script src="/assets/application.js?body=1" type="text/javascript"></script>

Answer 1

The answer was asset compilation.

Our system is set to automatically compile assets during runtime.

I had (mistakenly) also done a rake assets:precompile so I had basically duplicated the js and created the duplicate. I noticed at the time theta the precompile that it created a lot of files which was a red flag as to why things had changed and the double click had started (although when precompile is used, it has its place).

Thanks to git I was able to revert to master, rebranch anew with a new branch name and just not do the precompile step.