It seems like your engine replaces all http links to https. It breaks some links, e.g. http://www.unicode.org/cldr/charts/latest/supplemental/language_plural_rules.html in 2014-02-10-string-localization.md article is ok, but being changed to https://www.unicode.org/cldr/charts/latest/supplemental/language_plural_rules.html isn't.
It seems like your engine replaces all http links to https. It breaks some links, e.g. http://www.unicode.org/cldr/charts/latest/supplemental/language_plural_rules.html in 2014-02-10-string-localization.md article is ok, but being changed to https://www.unicode.org/cldr/charts/latest/supplemental/language_plural_rules.html isn't.