Sites on path are not invalidating CDN for nodes

Problem/Motivation

CloudFront needs the full path to be submitted to flush a given page/node. The module does not take into account if a site is hosted on a directory path, e.g. xyz.com/sitename/en.

Given a specific page, e.g. xyz.com/sitename/en/about-us, The module only sends out a CDN flush request for /en/about-us, but this does not flush the page from CloudFront. It should pass along /sitename/en/about-us for it to work.

Steps to reproduce

Implement Drupal site on a directory path.

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes