View-source URI scheme

The view-source URI scheme is used by some browsers to construct URLs that refer to a source display for a given resource.

For example, this URL would show the source of the page located at http://www.example.com: view-source:http://www.example.com

Browser Support

Mozilla Firefox and Internet Explorer both supported the scheme, but support was dropped from Internet Explorer in Windows XP SP2 due to security problems.^[1] Firefox also suffered a similar security issue (by combining view-source and javascript URIs^[2]), but still supported it in Firefox 1.5^[3] after being fixed. In 2009 a new discovered bug was fixed in Firefox 3.0.9.^[4]

• Mozilla Firefox - supported
• a Mozilla Firefox extension called View Source Choice add more option to the behavior.^[5]
• Netscape - supported
• Internet Explorer 4, 5, and 6 - supported
• Internet Explorer 6, 7, and 8 - not supported after Windows XP SP2
• Safari 3.2.1 - supported^{[citation needed]}
• Opera 7, 8, 9, 10 - not supported
• Google Chrome - supported^{[citation needed]}
• Epiphany - supported^{[citation needed]}

References

1. "view-source Protocol". MSDN. Retrieved 2009-02-25.
2. mikx (2005-05-21). "Mozilla Firefox view-source:javascript url Code Execution Exploit". milw0rm. Retrieved 2009-02-25.
3. jonathan (2005-11-30). "View Source Bug Fixed and a Tip". blogzilla. Retrieved 2009-02-25.
4. Fleischer, Gregory (April 21, 2009). "MFSA 2009-17: Same-origin violations when Adobe Flash loaded via view-source scheme". Mozilla. Retrieved 2009-04-22.
5. mackers (2008-03-24). "View Source Choice". Mozilla Add-ons. Retrieved 2009-04-22. {{cite web}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)