Rails.js not preventing double submit

Using form :remote and jquery-rails (1.0.14)

You can easily double submit on firefox 6 and probably most other browsers. I worked around by adding code like this

$('#form').live('ajax:beforeSend', function(evt, xhr, settings){
  // prevent double submit
  $(':submit', this).click(function() {
    return false;
  });
});

[JangoSteve]

Oh wow, that’s strange. The only time I’ve seen this behavior was when someone was including the jquery-ujs file twice in their layout. If it’s doing that on its own, I’d definitely like to see an example.

[jkaipr]

I also encountered a problem like this - double form submission with a Rails 4 remote form. My problem wasn’t caused by double inclusion of jquery_ujs, it was caused by a javascript form validation library - https://github.com/jkaipr/bootstrap-validator-rails. I fixed it in the gem and informed the source code author about it - nghuuphuoc/bootstrapvalidator#319.

If you don’t have a double jquery_ujs and are experiencing this issue, I suggest you open up Chrome developer tools and look into the Network tab, there you have a column called Initiator - hovering over it will show you the stacktrace leading to the form submission. You should see two requests to the same URL, one of them initiated by jquery_ujs the other one probably by some other piece of javascript.

Hope this helps somebody.