title: polyfills issues with Internet explorer 11 and angular HttpClient post
body: <p>I'm having trouble getting my angular 4 application to work in IE 11 with the new httpclient post. This problem is only related to IE11 and is working fine in chrome.</p>
  
  <p>I keep getting the error Invalid character.
  <a href="https://i.stack.imgur.com/EaYW6.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/EaYW6.png" alt="enter image description here"></a></p>
  
  <p>From what I can see that differs is the post body that I send to the server. In the chrome browser it is formatted like this:</p>
  
  <p><a href="https://i.stack.imgur.com/WvR7Q.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/WvR7Q.png" alt="enter image description here"></a></p>
  
  <p>And in IE11 the same object is looking like this:</p>
  
  <p><a href="https://i.stack.imgur.com/XuuEV.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/XuuEV.png" alt="enter image description here"></a></p>
  
  <p>Can these Symbol properties mess up the object so that it wont be accepted on the server? If i dont parse the error message with an interceptor I just get Internal server error(500).</p>
  
  <p>This is the object that I specify to send in the body:</p>
  
  <p>let body =<br/>{<br/>
                  FromDate: form.fromDepDate,//Date <br/>
                  ToDate: form.toDepDate, //Date<br/>
                  UserIds: userIds //string array <br/>
              };</p>