Salesforce Web to Lead or Case Tutorial

Hey Mitch, Great Work!, no matter what date I pick in the html date picker, the day is always 1 less ???? Please Help

Bro, This is a great tutorial, If I am using the same for Web-to-Case functionality and putting the generated HTML in my LWC code and triggering the API call on hit of submit button the standard URL generated, it is throwing CORS error and unable to resolve it.

Would you have any idea about it?

Thanks!