The code works when you refresh the page but not on original load.

Pinterest Clone I'm building. Rails App 4.1.4.

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What is supposed to happen

When you click a Pin from the index page, it takes to SHOW page.
SHOW page has some JavaScript which resizes picture / DIV.

.

Problem:

Almost every time I click a Pin from the index page, the javascript does not run (does not resize the image / div).

BUT if I click REFRESH with the web browser the script seems to always run just fine (the images / Div get's resized just fine).

.

Link to js on github: https://github.com/growthcode/pinterest/blob/master/app/assets/javascripts/pins.js.coffee

Here it is on Heroku to try it out: https://growthcode-pinterest.herokuapp.com/

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html of the SHOW pin:

<div class="container">
  <div class="row">
    <div id="showPinContainer" class="col-xs-12">
      <div id="showPin" class="well">
        <%= image_tag @pin.image, class: "show-image" %>
        <p class="description"><%= @pin.description %></p>
        <p><%= @pin.user.name %></p>
        <% if current_user == @pin.user %>
        <%= link_to 'Edit', edit_pin_path(@pin) %> |
        <% end %>
        <%= link_to 'Back', pins_path %>
      </div>
    </div>
  </div>
</div>

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I wrote this in coffee script on rails, I'll list both coffee script and the 'Js2coffee' conversion of it.

Coffee Script:

# Pin Show page
$ ->
  # set jQuery object variables
  $windowObj = $(window)
  $showPinContainer = $("#showPinContainer")
  $showPin = $("#showPin")
  $showPinImg = $("#showPin img")
  $showPinHeight = $("#showPin").outerHeight()
  $showPinImgWidth = $showPinImg.outerWidth()

  setShowPinContainerHeight = ->
    if $showPinHeight > 450
      $showPinContainer.outerHeight( $showPinHeight )
    else
      $showPinContainer.outerHeight( 450 )

  setShowPinContainerWidth = ->
    if $showPinImgWidth < 200
      $showPinImg.outerWidth( 200 )
    else if $showPinImgWidth > 300 
      $showPinImg.outerWidth( 300 )

  setShowPinContainerSize = ->
    setShowPinContainerHeight()
    setShowPinContainerWidth()

  setShowPinContainerSize()

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The Js2coffee.com conversion of the above coffee script:

$(function() {
  var $showPin, $showPinContainer, $showPinHeight, $showPinImg, $showPinImgWidth, $windowObj, setShowPinContainerHeight, setShowPinContainerSize, setShowPinContainerWidth;

  $windowObj = $(window);
  $showPinContainer = $("#showPinContainer");
  $showPin = $("#showPin");
  $showPinImg = $("#showPin img");
  $showPinHeight = $("#showPin").outerHeight();
  $showPinImgWidth = $showPinImg.outerWidth();

  setShowPinContainerHeight = function() {
    if ($showPinHeight > 450) {
      return $showPinContainer.outerHeight($showPinHeight);
    } else {
      return $showPinContainer.outerHeight(450);
    }
  };

  setShowPinContainerWidth = function() {
    if ($showPinImgWidth < 200) {
      return $showPinImg.outerWidth(200);
    } else if ($showPinImgWidth > 300) {
      return $showPinImg.outerWidth(300);
    }
  };

  setShowPinContainerSize = function() {
    setShowPinContainerHeight();
    return setShowPinContainerWidth();
  };

  return setShowPinContainerSize();
});

This is my first question on Stack Overflow, so if there is anything else I can provide that would help, please let me know. Thank you!