OK, for the CSS-aggregation debugging-code; could you around line 147 replace
} else {
// Couldn't read CSS. Maybe getpath isn't working?
$css = '';
}
with
} else {
$this->ao_logger("Problem with file ".$css);
$this->ao_logger("readable: ".is_readable($css));
$this->ao_logger("exists: ".file_exists($css));
// Couldn't read CSS. Maybe getpath isn't working?
$css = '';
}
We might have to add similar debugging-code to the block just before, but let's see what this learns us first.
frank