You can use this to either view quickly the contents of a ics file, or a ics feed online, or to make a public ics feed or local file viewable trough an url.
I can't believe this doesn't exists... I just want this, nothing more. I just don't want to download / import to view something online.
Time it took to make, aka combine two existing javascript libraries: 2h
result: something super usefull if you need it. If you need feature-x or it doesn't works, just open an issue.