This document explains how to clear the cache and cookies in Google Chrome on Max OSX
Click on Chrome > Clear Browsing Data….
Check the following:
Browser history
Cookies and other site data
Cached images and files
*** Be sure to select the optional time range: All time
Be sure to select All time in the Time range drop down box. Don’t check to clear your passwords as you’ll want to keep those. Click on the CLEAR DATA button.
After you clear your Internet cache, close your web browser.