I found the mistake. There was something wrong with my lighttpd access configuration.
Althought using localhost in the url, it seems like MM resolves the hostname or at least the web server thinks he was accessed by its hostname.
Adding the hostname itself to the access rule did the trick.

Thanks for the help and regards!

@strawberry-3-141 Thank you for your answer and sorry for my late reply.

Good idea, I tried different samples I found online, for example all German holidays.
Placing it locally results in no events. Using the URL http://ifeiertage.de/ni-sk.ics works. The problem seems to my environment. But I can’t spot it right now cause doing a simple curl works without any problems.

Is there a way to increase/get any logging of what happens when MM tries to fetch the ics?

Hello,

I installed MM2 cloning it from the GitHub repo. I want to display events from multiple ical calendars.
Because my collaboration server uses a self signed certificate I provide the ics files via a local webserver.

The problem I have is that the interface always says that there are no events, no matter which ics file I try.

My config looks like this:

{
                        module: "calendar",
                        header: "Kalender",
                        position: "bottom_left",
                        config: {
                                calendars: [
                                        {
                                                url: 'http://localhost/calendars/Calendar.ics',
                                                symbol: 'archive'
                                        }
                                ],
                                fetchInterval: 60000
                        }
                },

The application starts without any errors.

Starting MagicMirror: v2.1.2
Loading config ...
Loading module helpers ...
No helper found for module: alert.
Initializing new module helper ...
Module helper loaded: updatenotification
No helper found for module: clock.
Initializing new module helper ...
Module helper loaded: calendar
No helper found for module: compliments.
No helper found for module: currentweather.
No helper found for module: weatherforecast.
Initializing new module helper ...
Module helper loaded: newsfeed
All module helpers loaded.
Starting server on port 8081 ... 
Server started ...
Connecting socket for: updatenotification
Connecting socket for: calendar
Starting node helper for: calendar
Connecting socket for: newsfeed
Starting module: newsfeed
Sockets connected & modules started ...

Ready to go! Please point your browser to: http://localhost:8081

Create new calendar fetcher for url: http://localhost/calendars/Calendar.ics - Interval: 60000

Running the debug.js shows the following:

Create fetcher ...
Create fetcher done! 
[]
------------------------------------------------------------

It seems like it can’t parse the file which looks as follows e.g.:

BEGIN:VEVENT
UID:1f38f412-f257-4094-8df5-468caaca2332
SUMMARY:Do some stuff
ORGANIZER;CN=John Doe:mailto:john@doe.com
DTSTART;VALUE=DATE:20170715
DTEND;VALUE=DATE:20170716
STATUS:CONFIRMED
CLASS:PRIVATE
X-MICROSOFT-CDO-ALLDAYEVENT:TRUE
X-MICROSOFT-CDO-INTENDEDSTATUS:FREE
TRANSP:TRANSPARENT
LAST-MODIFIED:20170710T123051Z
DTSTAMP:20170710T123051Z
SEQUENCE:0
END:VEVENT

The file contains a lot more events in the past and the future - also none all-day events.

The system is a Raspberry 2 Model B running raspbian. I start MM2 as “serveronly” and open the interface from another device.
Only thing left to mention is that I had to replace node from the repository doing this. Otherwise it wasn’t possible to run “npm install”

It would be great, if you have an idea.
Thanks and regards!