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How to use jQuery with Rails 2.0 - aka How to fix "ActionController::InvalidAuthenticityToken (ActionController::InvalidAuthenticityToken)"

Ruby posted 6 months ago by christian

All credit goes to Henrik Nyh for writing a blog post about how to fix this issue.

This is a slight variation of his code:

In application.html.erb, or whatever layout file you’re using, put: 

   1  <%= javascript_tag "window.AUTH_TOKEN = '#{form_authenticity_token}';" %>

In application.js, or whatever JavaScript file you’re using, put: 

   1  $(document).ajaxSend(function(event, request, settings) {
   2    if (typeof(window.AUTH_TOKEN) == "undefined") return;
   3    settings.data = settings.data || "";
   4    settings.data += (settings.data ? "&" : "") + "authenticity_token=" + encodeURIComponent(window.AUTH_TOKEN);
   5  });

That’s all…

Tagged authenticity, rails, rails 2, token, jquery, javascript, ajax

ActionController::InvalidAuthenticityToken (ActionController::InvalidAuthenticityToken):

HTML (Rails) posted 6 months ago by christian 

   1  <input name="authenticity_token" value="<%= form_authenticity_token %>" type="hidden" />

or

   1  <%= token_tag %>

Tagged authenticity, token, ruby, rails