If I have the embed HTML for a Google Calendar, can I extract the URL I would use to subscribe to the calendar?
For example:
Embed code (linebreaks added for clarity):
<html>
<iframe src="https://www.google.com/calendar/hosted/example.com/embed?
height=600&wkst=1&bgcolor=%23FFFFFF&
src=example.com_ecafa7el7kc4du1ervkdff4x6a%40
group.calendar.google.com&color=%23AB8B00&
ctz=Pacific%2FApia"
style=" border-width:0 " width="800"
height="600" frameborder="0" scrolling="no">
</iframe>
</html>
the juicy bit is src=example.com_ecafa7el7kc4du1ervkdff4x6a%40group.calendar.google.com
but I can't seem to get it into a format I can use in Add -> Add by URL in my Google Calendar.