[postfixadmin/postfixadmin] 540b32: probable fix for #556 - see if CONF[site_url] is a...

[David G. <no...@gi...>]

  Branch: refs/heads/master
  Home:   https://github.com/postfixadmin/postfixadmin
  Commit: 540b32f1a091bbddb86408bb08cedb0084d6b0fa
      https://github.com/postfixadmin/postfixadmin/commit/540b32f1a091bbddb86408bb08cedb0084d6b0fa
  Author: David Goodwin <da...@co...>
  Date:   2021-11-10 (Wed, 10 Nov 2021)

  Changed paths:
    M functions.inc.php

  Log Message:
  -----------
  probable fix for #556 - see if CONF[site_url] is a string before trying to use it