title: Restrict all special characters except for '/' in my input text field in html
body: <p>I want to restrict all special characters inside my input text field, except for the character <code>/</code>. How do I do that?</p>
  <p>Edit: I want my text field to be like this <a href="https://www.aspsnippets.com/demos/563/" rel="nofollow noreferrer">input text</a></p>