window.print() reagiert nicht

[ollelinse]

Vielleicht mit popup.print() ?

Code:

const sendMessageId = document.getElementById("Button_click");
if (sendMessageId) {
  sendMessageId.onclick = function() {
    const popup = window.open("https://www.example.com", "popup", "width=400,height=300");
    popup.onload = function() {
      popup.print();
    };
  };
};