This is really impressive! I noticed the script uses `const` and `let` which might cause javascript errors in older browsers (https://caniuse.com/#search=let ht

This is really impressive! I noticed the script uses `const` and `let` which might cause javascript errors in older browsers (https://caniuse.com/#search=let https://caniuse.com/#search=let) so I ran it through the Google Closure compiler to compile it down to ES3 and it works great. https://closure-compiler.appspot.com/home https://closure-compiler.appspot.com/home I've added it to my blog and a Django side project. Really speeds up page loads. Just need to add `data-no-instant` attribute to the logout link.