Rather than include the
<script> tags at every instance, place this at the bottom of your HTML, and edit the array
asyncScripts to match the JS files you want to load. Everything is wrapped in an anonymous function, which just goes through each item in that array and loads the corresponding script. As a result, the share buttons don’t block loading the rest of the page, and each required resource is only loaded once rather than N times for each N button on the page.