I seem to be encountering this routinely, wonder if there's some general amelioration of this being pursued.

www.openinfra.org.md

@@ -0,0 +1,21 @@
+
+Server answers to www via https, but cert supplied is for non-www site.
+
+Source of link:
+
+<https://allthingsopen.org/speakers/elizabeth-joseph/>
+
+Leads to certificate mismatch error
+
+> www.opensourceinfra.org uses an invalid security certificate. The certificate is only valid for opensourceinfra.org Error code: SSL_ERROR_BAD_CERT_DOMAIN
+
+when arriving at
+
+<https://www.opensourceinfra.org/>
+
+The site
+
+<https://opensourceinfra.org/>
+
+is just fine.
+