I'll try and make time to do that.
Fundamentally use of a client side shell script is a bad approach. Too little control over the execution environment and too many unknowns at play. One of the major reasons web based, which is to say browser client based applications are much easier to maintain and deploy than classic client-server. Next to no security either which means all the security code still has to exist on the server so one might as well put all the code there. The only good reason for client side code is to improve the user experience - performance and appearance in other words. B ut that comes at a price too. Javascript provides all sorts of capabilities and at least twice as many hazards. For this SSL certificate application, KISS principles should prevail. Here they do not which is probably one reason so much "help" is needed in forums.