Adding a paragraph to explain that the Origin header may not necessarily be from a different origin.
Merge remote-tracking branch 'upstream/master'
Clarifying browser-specific behavior for Origin header.
Revising paragraph on origin and same-origin requests
Merge pull request #273 from monsur/master

Adding a paragraph to explain that the Origin header may not necessarily be from a different origin.
Merge pull request #269 from kuu/master

Added Japanese text.
More SD 201
Merge branch 'master' of https://github.com/html5rocks/www.html5rocks.com
fixing url