title: Fabric.js changes my canvas size to 300x150 after initialization
body: <p>HTML:</p>
  
  <pre><code>  &lt;div class="canvas-wrapper"&gt;
      &lt;canvas id="myCanvas"&gt;&lt;/canvas&gt;
    &lt;/div&gt;
  </code></pre>
  
  <p>CSS</p>
  
  <pre><code>.canvas-wrapper {
      width: 900px;
      min-height: 600px;
   }
  
   #myCanvas{
       border:1px solid red;
       position: absolute;
       top:22px;
       left:0px;
       height: 100%;
       width: 99%;
   }
  </code></pre>
  
  <p>JS</p>
  
  <pre><code>var myCanvas = new fabric.Canvas('myCanvas');
  </code></pre>
  
  <p>My canvas get resized to 300x150 after it's been initialized, why?</p>