Remove "base href" JOOMLA

Probably not recommended but if other solutions here don't work and you want to hack the core the files you need are in libraries/joomla/document/html/renderer/head.php

Just comment out

$base = $document->getBase();
if (!empty($base))
{
$buffer .= $tab . '<base href="' . $document->getBase() . '" />' . $lnEnd;
}

around line 72