[1] x-callback-url Support – Contrast Tech Support ( (11/15/2013, 7:03:50 PM 版)) <http://help.contrast.co/hc/en-us/articles/200611883-x-callback-url-Support>

[2] Dropbox Actions – Contrast Tech Support ( (11/15/2013, 7:05:31 PM 版)) <http://help.contrast.co/hc/en-us/articles/200612283-Dropbox-Actions>