[1] [CITE@en-US[x-callback-url]]
( ([TIME[2013-11-16 03:19:16 +09:00]] 版))
<http://x-callback-url.com/>

[2] [CITE[x-callback-url - handleOpenURL: Shared Interapp Communication on iOS]]
( ([TIME[2013-11-16 03:23:56 +09:00]] 版))
<http://handleopenurl.com/xcu-schemes>