title: Input field name starts with a number
body: <p>I have an input field whose name is an MD5 string e.g.:</p>
  
  <p><code>&lt;input type="hidden" name="7815696ecbf1c96e6894b779456d330e" value="1"&gt;</code></p>
  
  <p>Now I understand that having a number as the first letter in an input field name is generally bad practice, but are there any side-effects to this such as a certain browser won't send it in the POST request?</p>