title: Issue with Base64-encoded parameter in query string
body: <p>I'm sending a link in my web application to users mails (for confirming user registration) as the following :</p>
  
  <pre><code>&lt;a target="_blank" href="http://localhost:2817/ConfirmRegistration?confirm=Y0tcmGepe7wjH7A1CT1IaA=="&gt;
  http://localhost:2817/ConfirmRegistration?confirm=Y0tcmGepe7wjH7A1CT1IaA==
  &lt;/a&gt;
  </code></pre>
  
  <p>But Chrome alert this message :<br/><br/>
  <img src="https://i.stack.imgur.com/YtNdS.png" alt="Chrome Message"></p>
  
  <p>Is the query string invalid ? How can I resolve it ?</p>
  
  <p>BTW:<br/>
  My application is in C# and MVC3</p>