@shadyvb I had to move this down after the `apply_filters` calls in 7024c1333c5da9e8ac312afd73c6420e9d6bc9c7. The reason is because I have `WP_DEBUG` turned on which by default also disables minification (per the above line), so I threw in a mu-plugin:

```php
add_filter( 'dependency_minification_disabled', '__return_false' );
```

Which then overrode your permalink structure check.