Integrating Helper.World to your web site or web application is as easy as copying just a small code snippet. That's all.
Well, there's one more thing to do, if the helper misses some icons on his screen. That's because of security policies of current browsers. If you have some technical knowlegde, you can open the browser console and you'll see something like this:
Access to Font at 'https://xyz.com/fonts/arial.woff' from origin 'https://helper.world' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'https://helper.world' is therefore not allowed access.
That's no big deal. Just say your system administrator to add the following header to static files:
add_header Access-Control-Allow-Origin "https://helper.world";
add_header Access-Control-Allow-Methods "GET";
And it's done. Helper.World will work without this, but if your helpers miss some icons, that's the reason.