如何在javascript或angular 4中使用window.print（）打印页面时删除页面URL

Question

I have a function using window.print() to print the current page. I want to remove page URL when print page. I want to remove the following URL

Here is my code, I want to remove it in this function

print() {
    this.isPrint = true;
    document.title = "";
    setTimeout(() => {
        window.print();
    }, 0);
}

Answer 1

添加CSS

 @page { size: auto;  margin: 0mm; }

Answer 2

Try to the following code

print() {
  this.isPrint = true;
  document.title = "";
  setTimeout(() => {
    var curURL = window.location.href;
    history.replaceState(history.state, '', '/');
    window.print();
    history.replaceState(history.state, '', curURL);
  }, 0);
}

But this is the perfect way

@media print {
  @page {
    margin: 0;
  }
  body {
    margin: 1.6cm;
  }
}

Or Use printjs https://printjs.crabbly.com/