While trying to update my Joomla instance on my native environment in OSX Yosemite 10.10.5. I am brought to the "updating" page where the progress bar shows up and a message that says 'Updating your Joomla files. Please wait ...' but nothing happens. I looked in my server log files but found nothing unusual, however I do get an error in the browser console on the 'updating' page that says -
Uncaught TypeError: window.pingExtract is not a function