How to remove viber:// to https:// replacement in WordPress?

Question

WordPress

Site on WordPress, I add a link to the Viber chat like:

viber://pa?chatURI=XXXXXXXXXX&text=Hello!

But the site engine replaces viber:// with https:// and the link stops working correctly. How to disable automatic replacement?

https://pa?chatURI=XXXXXXXXXX&text=Hello!

An SSL certificate is connected to the domain.

The code that I paste into the widget window:

<a href="viber://pa?chatURI=XXXXXXXXXX&text=Hello!" target="_blank" rel="nofollow"><i class="fab fa-viber" style="color:#e50000; font-size: 42px; padding-right: 10px;"></i></a>

Answer 1

Place the file on any of your sites, the link will be like this
https://yousite.ru/bot.php
bot.php with the following content:

<?php
header('Location: viber://pa?chatURI=XXXXXXXXXX&text=Hello!');
exit;
>

An example of work in the sale here
Radio-Viber