You can generate the certificate but browsers don't like multiple wildcards. Any application following the rules set out by RFC 6125 should reject multiple wildcards as far as I can tell.
Some browsers (notably Firefox) used to support multiple wildcards, but then again it also trusted domain certificates signed by other domain certificates for years, so that's not much to go by. These days, I don't think a single browser will accept ..foo.bar.
Some browsers (notably Firefox) used to support multiple wildcards, but then again it also trusted domain certificates signed by other domain certificates for years, so that's not much to go by. These days, I don't think a single browser will accept ..foo.bar.