why i can't print the polygon when i using library @react-google-maps/api ? when i make it as pdf the data goes in, but when i click dowload which code like this

const print =() => {
     var printContents = document.getElementById('canvas').innerHTML;
     var originalContents = document.body.innerHTML;

     document.body.innerHTML = printContents;

     window.print();

     document.body.innerHTML = originalContents;
}

the google maps data not generated, the polygon missing.

Has anyone had any success with this?