dispatch input event to simulate user input

extension/content.js

@@ -3,6 +3,11 @@ chrome.runtime.onMessage.addListener(message => {
   const loginForm = getLoginForm();
   loginForm.loginField.value = message.login;
   loginForm.passwordField.value = message.password;
+
+  var event = new Event('input');
+  loginForm.loginField.dispatchEvent(event);
+  loginForm.passwordField.dispatchEvent(event);
+
   loginForm.form.submit();
 });