I just looked at the print preview in Firefox. Worked fine for me.
I removed it with devtools, so surely there is a dozen of work-arounds, but, still, it just weird that a page that is supposed to show a calendar, doesn't show a calendar.
I removed it with devtools, so surely there is a dozen of work-arounds, but, still, it just weird that a page that is supposed to show a calendar, doesn't show a calendar.