Stephen Paul Weber

It seems likely this is some sort of firefox version compatibility issue.

I also see "There was an error, so we could not load the services from the localStorage. " -- and the reason given is the security reason from above. Since...

If I just add an iframe to the DOM of any site with `https://www.subtome.com/?subs/#/subscribe?resource=https:%2F%2Fsingpolyma.net%2Ffeed%2F` as the `src`, I reproduce on my browser

I have to set "Accept third party cookies" to "always" and then the issue goes away.

So, it would be nice if this error didn't cause the whole UI to just not render at all, makes the site look broken

Relevant ticket that introduced this behaviour to firefox: https://bugzilla.mozilla.org/show_bug.cgi?id=536509

This is very related to, and may be the same as, #75

My preferred fallback (if nothing useful can be rendered, though probably we can, just can't show the user's preferences so it's always like they're new, which would be fine) would...

I'd be very concerned about including invalid markup by default

If external *.ics files (or folders) could be added (as with orage) then `vdirsyncer` could be used for multiple calendars and sync support.