Backup diff of URL (No. 1)

• Backup list
• View the diff current.
• View the diff for visual.
• View the source.
• View the backup.
• Go to URL.
  • 1 (2016-12-07 (Wed) 11:54:06)

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

- URL Parsing in WebKit
--  https://webkit.org/blog/7086/url-parsing-in-webkit/