drushrc.local.php

# Verified working in Drupal 8.6.1 - 8.6.10

# To resolve the 'default domain not found' issue,
# create drushrc.local.php in sites/default

<?php

$options['uri'] = 'http://domain:8080';


# and within drushrc.php add a check to see if 
# local exists and include the newly created drushrc.local.php

$local_drushrc = __DIR__ . "/drushrc.local.php";
if (file_exists($local_drushrc)) {
  include $local_drushrc;
}

# Make sure drushrc.local.php is ignored by git so
# you don't push it to production