bug fix

src/utils/mixStr.js

   return str.repeat(Math.floor(len / orginLen)) + str.substr(0, len % orginLen)
 }
 
-const mixChars = window.navigator.userAgent + (new Date).toUTCString().replace(/\d{2}:\d{2}:\d{2}/, '')
+const mixChars = window.navigator.userAgent // + (new Date).toUTCString().replace(/\d{2}:\d{2}:\d{2}/, '')
 
 const strXOR = (str, mix) => {
   if (!str) return str