In PHP7.2 this causes an error later.

[johnkawakami]

https://github.com/sillybean/HTML-Import-2/blob/bec6d2e399739486199272108a0e620b90888d76/html-importer.php#L1114

Throws errors later, when this is assigned by $this->table[] = "...

fix is
$this->table = [];