title: Not being able to set property in form using jquery
body: <p><strong>Browser</strong>: Chrome (Version 78.0.3904.108 ), Firefox: 71.0 (32-bit)</p>
  
  <p><strong>Jquery</strong>: 3.3.1</p>
  
  <p>I am trying to upload an image using jquery.
  So, I tried to use the FormData and set a field with the blob value. Reference source: <a href="https://developer.mozilla.org/en-US/docs/Web/API/FormData/set" rel="nofollow noreferrer">https://developer.mozilla.org/en-US/docs/Web/API/FormData/set</a></p>
  
  <p>In the debugger, I found that I am not being able to set any field. Please see the screenshot from the console for a similar example.</p>
  
  <p><a href="https://i.stack.imgur.com/QT5Nh.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/QT5Nh.png" alt="enter image description here"></a></p>
  
  <p>Any insight or idea?</p>