title: vim insert mode mapping doesn't work
body: <p>I want to move one word forward in insert mode.</p>
  
  <p>Why this doesn't work:</p>
  
  <pre><code>inoremap ,w &lt;esc&gt;w
  </code></pre>
  
  <p>But this works(back one word):</p>
  
  <pre><code>inoremap ,b &lt;esc&gt;b
  </code></pre>