Shipping calculator not works on custom Cart page

Hi, i am customizing my own shopping cart page
I build the Cart page using Elementor, in which there are 2 main widgets are Cart Form and Cart Totals.

In the Cart Totals widget, when I submit Shipping calculator form, no notice appears, while there is still <div class="woocommerce-notices-wrapper"></div> tag so that the notice can be printed through in javascript.

Can you give me some suggestions to solve this problem.

Or how can I inject the Shipping calculator form into ajax just like any other existing feature like apply_coupon, add_to_cart… without submit form and then parsing the returned html?

I want call ajax handling and get response after submit form:
1. Get notice info
2. Get calculated shipping address

Is it possible, so how can I do it?

You can check detail here:
Image
Video

Thank you.