simple hard captcha
$ npm install simple-hard-captcha
Arial is a proprietary typeface to which Monotype Imaging owns all rights.
So please replace your authorized Arial Black font (in Windows, OS X or MS Office, etc.) with the
static/ArialBlack file :)
var SHC = ;var shc = ;shc;shcresult; // get the resultshc; // get base64 string of captcha image