Looks like the StackEdit.io SSL certificate has expired, even worse the latest Chrome seems to give no way around this:
SSL certificate has expired
David_Hunter
#3
Well it seems to be expired again. Right now on my Chromebook if I open the web app it loads fine, but if I right-click a document from Google Drive and open it in SE I get a certificate error. It seems the cert that was purchased only lasted 3 months?
Zac_Wolfe
#5