alertTraceConsole.js

// IIFE - to print the trace where alert raised from
// Doesn't impact the alert behavior or any other behavior of your front end
// Add this code in your javascript or run it in console of your browser
// After adding, console will have stack trace of the alert printed

(function(proxied) {
  window.alert = function() {
    console.trace();
    return proxied.apply(this, arguments);
  };
})(window.alert);

// have used proxy approach for not disturbing the alert call