How to send a WhatsApp message from a website using emoji (emoticons)?

Question

JavaScript

The task is to send a text from the site to the specified WhatsApp number. The message was formed, sent to the specified number. Works.
However, when the user enters emoji characters, my code stops working. Tell me, is it possible to somehow encode / decode emoji characters to transfer them from the browser to the server? Or is it possible to somehow prevent emoji characters from being entered in the browser text field?
Code below:

<script src="https://unpkg.com/@green-api/whatsapp-api-client/lib/whatsapp-api-client.min.js"></script>
<script>
    document.getElementById("SendWAMessage").addEventListener("click", function () {
        try {
            
            const restAPI = whatsAppClient.restAPI(({
                idInstance: "8728",
                apiTokenInstance: "87be28c803ecdf8b9ea1ff8c59d0cd146ed8836bc5c3437728"
            }));

            restAPI.message.sendMessage(null, document.getElementById("waPhone").value, document.getElementById("waMessage").value)
            .then((data) => {
                console.log(data);
            }).catch((reason) =>{
                console.error(reason);
            });

        } catch (reason) {
            console.error(reason);
        }
    });
</script>

Answer 1

Or is it possible to somehow disable the input of characters?

https://developer.mozilla.org/en-US/docs/Web/JavaS...