title: Encoded URL does not work
body: <p>I am confused about encoded URLs.</p>
  
  <p>For example, when I write my browser:</p>
  
  <pre><code>stackoverflow.com/questions
  </code></pre>
  
  <p>I can successfully view the page.</p>
  
  <p>However, when I write:</p>
  
  <pre><code>stackoverflow.com%2Fquestions
  </code></pre>
  
  <p>I am unable to view.</p>
  
  <p>Since <strong>%2F</strong> means "/", I want to understand why this does not work properly. </p>
  
  <p>The reason why I want to find out is that I am getting an encoded URL and I don't know how I can decode that URL right after I receive it in order not to have an error page.</p>