Backup diff of WebStorage (No. 1)

• Backup list
• View the diff current.
• View the diff for visual.
• View the source.
• View the backup.
• Go to WebStorage.
  • 1 (2014-01-29 (Wed) 09:18:47)
  • 2 (2019-10-12 (Sat) 16:30:44)

• The added line is THIS COLOR.
• The deleted line is THIS COLOR.

- HTML5 Web Storage
--  http://www.w3schools.com/html/html5_webstorage.asp