This small ruby can decrypt AES-CBC encrypted at https://jsfiddle.net/kq8Lfpar/7/

decrypt.rb

require 'openssl'
require 'base64'

puts 'Go to https://jsfiddle.net/kq8Lfpar/7/ and encrypt some text for decrypt here'

print 'Password: '
password = gets.chomp

print 'Encrypted: '
encrypted = gets.chomp


salt, iv, cipher = encrypted.split('.').map{|s| Base64.decode64(s) }

key = OpenSSL::PKCS5.pbkdf2_hmac_sha1(password, salt, 100, 256)
aes = OpenSSL::Cipher::Cipher.new('AES-256-CBC')
aes.decrypt
aes.key = key
aes.iv = iv

print aes.update(cipher)
puts aes.final