Does not work on multisite installs

Problem/Motivation

When installing this module on a multisite installation, the service that check's the page URI is only checking for /node or /[language-id/node. For a multisite install that uses a subdirectory format, this check will not work on any /node page but the default site.

Steps to reproduce

Install Drupal with the "standard" multisite setup using sub-directories. Go to the /node page on any of those subdirectory sites.

Proposed resolution

In the list of valid URIs, add the following code: `$request->getBaseUrl(); . '/node',`