Path to statistics.php is not correct when the path start with index.php

Hi,

I've installed Drupal 8.3.2 in a subfolder of my public_html webfolder. The website is accessed by https://www.mydomainname.com/subfolder

I enabled the statistics module, but this one is now making calls to:

https://www.mydomainname.com/subfolder/<b>index.php</b>/core/modules/statistics/statistics.php

The 'index.php' should not be in the URL. The URL is constructed in: core/modules/statistics/statistics.module:statistics_node_view (line 44). But I think the root cause is in the Url implementation which should not add the 'index.php'?

Also this problem can be reproduced for the usual installation of Drupal (without a subfolder):

1. Install statistics module and checked 'Count content views' in configuration of this module.
2. Go to page <site>/index.php/node/add/article and create Article node
3. Go to page /admin/reports/dblog and see the message 'page not found'.