protocols - 什么是 Webcal 协议(protocol)？

Question

最近我试图从 Facebook 导出我 friend 的生日列表，我得到了一个像这样的网址 -

webcal://www.facebook.com/ical/b.php?uid=14422701&key=42c5e45fasd

我想知道，这个 webcal://协议(protocol)是什么？有人可以帮我吗？我尝试谷歌搜索，但没有找到易于理解的解决方案。

Answer 1

Webcal was initiated for use with the Apple iCal application and has become a common de facto standard for accessing iCalendar formatted files via WebDAV.[citation needed] It is not an official URI scheme, such as http: and ftp:, as registered with IANA. The Webcal protocol prefix is used to trigger an external protocol handler which is passed the URL of the .ics file rather than being passed the downloaded contents of the file, in much the same way feed: is sometimes used to trigger external RSS readers. The idea is that with this protocol prefix the target file should be subscribed to rather than imported into the calendar application as would happen with a simple download.

来自http://en.wikipedia.org/wiki/Webcal