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POWhy is Rails app sending two Ajax requests instead of one, only when using Firefox and on my local server?
 

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  1. POWhy is Rails app sending two Ajax requests instead of one, only when using Firefox and on my local server?
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    <p>I'm learning Rails development and am building a reddit-like app with voting on comments and posts to help learn. I have Ajax-ified the voting, and now on my local machine when I vote a post/comment up or down it sends two requests and creates two votes on either object. These votes are viewable in my votes table. </p> <p>This only occurs in Firefox (not Chrome or IE), and it only occurs on my local machine (it's fine in Heroku). I verified with Firebug that it is sending two requests, but I just can't figure out why. I don't believe my asset pipeline is causing the trouble because there just isn't much in there. </p> <p>This only started once I modified my voting behavior from reloading the page on each vote to using Ajax to display the vote totals. Note that a user can vote as many times as he/she wants right now</p> <p>My code is on github here: <a href="https://github.com/hellomcfly/tl_postit2" rel="nofollow">https://github.com/hellomcfly/tl_postit2</a></p> <p>My app is on Heroku here: <a href="http://fathomless-waters-1981.herokuapp.com" rel="nofollow">http://fathomless-waters-1981.herokuapp.com</a></p> <p>I don't know what code would help, but here is what is in my PostsController:</p> <pre><code>def vote @vote = Vote.create(voteable: @post, user: current_user, vote: params[:vote]) respond_to do |format| format.html do if @vote.vote == false flash[:alert] = "Downvote tallied!" redirect_to :back else flash[:success] = "Upvote tallied!" redirect_to :back end end format.js end end </code></pre> <p>And here is the relevant code in my posts#index template:</p> <pre><code>Net votes: &lt;span id="post_&lt;%=post.id%&gt;_votes"&gt;&lt;%= post.net_votes %&gt;&lt;/span&gt; &lt;ul&gt; &lt;li&gt;&lt;%= link_to "Vote Up", vote_post_path(post, vote: true), method: 'post', remote: true %&gt;&lt;/li&gt; &lt;li&gt;&lt;%= link_to "Vote Down", vote_post_path(post, vote: false), method: 'post', remote: true %&gt;&lt;/li&gt; &lt;/ul&gt; </code></pre> <p>And here is the vote.js.erb code:</p> <pre><code>$("#post_&lt;%= @post.id %&gt;_votes").html(&lt;%= @post.net_votes %&gt;); </code></pre> <p>Thanks for the help.</p>
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    1. USHelloMcFly
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    1. COFixed with the help of this thread: http://stackoverflow.com/questions/4231885/rails-3-ujs-controller-gets-called-twice-by-link-to-remote (I swear I looked all over for a pre-existing thread).
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