Fix Problems With Porto Theme

CheckoutWC works perfectly with Porto, but there is one setting that will create problems: Merge javascripts and stylesheets

You should not combine stylesheets and scripts. Before HTTP/2, this could increase performance but in modern times this will actually have the reverse effect. Modern browsers and servers allow browsers to process requests efficiently in parallel. Downloading multiple smaller files is faster than downloading a single big file.

How to Fix Broken JavaScript On The CheckoutWC Checkout Page With Porto Theme

Go to WP Admin > Porto > Speed Optimization Wizard > Advanced and uncheck Merge javascripts and stylesheets

Click Save & Continue

And now you’re done – the JavaScript errors that prevent the page from loading properly will be fixed.