Checkout form fields freeze after email input

Hello. We have a strange problem - the checkout Shipping address fields freeze when you type the full email at the top(it only does that just for certain email addresses, which is strange).

When I check the requests, it does a POST ajax request to "https://shop.app/pay/session/start", which returns 404, but on the emails when it freezes it returns 200 and some fields like “mobile_phone”, “phone_last_digits”, and “token”, then the input text fields freeze and have no value.

Can you share the url so the forum members can test? I assume you’ve done some testing between devices (inc mobile) correct?

I’m not sure what you mean about true url, but the store is located at dynastymattress.com, you can try to add something to cart and just go to checkout as a guest.

Funny thing is that this bug does not happen on mobile, the ajax code is 429 instead of 200 on there.

It looks like you’ve customised your checkout so the first thing to do would be to see if the error occurs without your custom code in place. There’s a decent chance those edits have caused the conflict. Report back with the results!

From my quick testing (you’ll see my abandoned cart for test@testtest.com), I was able to enter other fields and proceed to the next steps here.