Chrome 77 Not Auto-Printing PDFs
Ok, guys. I came across the same problem having auto print pdf feature not working on several laptops. This feature is very critical on several of our projects, so I thought this workaround for Chrome 77 might be very helpful for community as well:
var loadPDFAndPrint = function (id, url) {
$("#"+id).remove();
$("<iframe id='"+id+"' name='"+id+"'>")
.hide()
.attr("src", url)
.appendTo("body");
$("#"+id).on("load", function(){
function getChromeVersion () {
var raw = navigator.userAgent.match(/Chrom(e|ium)\/([0-9]+)\./);
return raw ? parseInt(raw[2], 10) : false;
}
if (getChromeVersion() >= 77) {
window.frames[id].focus();
window.frames[id].print();
}
})
}
This code requires jQuery, but you can easily adapt it to any js flavour you want.
Cheers!
This was deliberately removed.
Allow print() only in response to a user gesture
https://pdfium.googlesource.com/pdfium.git/+/2021804f1b414c97667c03d7ab19daf66f6a19ef
The issue was that the embedded JavaScript in PDF files did not respect the Content-Security-Policy of the embedding page. https://crbug.com/968914