This is probably working as intended, but did popup blocking get more restrictive in the last release or two?

For example, running this JS will only open the first window, and the second window will be blocked (depending on the site you execute the JS on), and Chrome silently shows a tiny popup blocked icon.

Basically, we have a feature that opens a list of links each in a new tab, and users have started complaining within the last week that it doesn't work any more. Maybe before it was more obvious that a popup was blocked?

// Prevent referrer leaking
openUrl = function(url, target) {
  newWin = window.open('', target, '');
  if (newWin) {
    newWin.opener = null;
    var html = '<meta name="referrer" content="no-referrer"><meta http-equiv="refresh" content="0; url=' + url + '">';
    newWin.document.write(html);
    newWin.document.close();
  }
}

newWindow = function(url) {
  openUrl(url, Math.random()+'');
}

newWindow('https://www.google.com');
newWindow('https://www.yahoo.com'); // this doesn't open

// You could also just use window.open and it'd still be blocked, but when you do it this way (to prevent referrer leaking) it shows about:blank in the popup blocked list and clicking on it just opens a blank tab.

For reference, I'm on 63.0.3239.132 Linux.