To enable pop-ups in Google Chrome:

Go to Settings and click Show advanced settings. Click on Content Settings under
Privacy. Scroll down to Pop-ups. Here you can choose “Allow all sites to show pop-ups”,
or you can click on “Do not allow any site to show pop-ups”, and add the URL for the
Lexington Aspen website (https://ma-lexington.myfollett.com) in the Manage exceptions
box.