magento/magento2:#4136 - Widget condition with unexpected character not preventing from saving

- Added autocomplete option for calendar.js

Author: Vasilii Burlacu

lib/web/mage/calendar.js

@@ -66,6 +66,9 @@
      * Widget calendar
      */
     $.widget('mage.calendar', {
+        options: {
+            autoComplete: true
+        },
 
         /**
          * Merge global options with options passed to widget invoke
@@ -378,6 +381,8 @@
                 .text('') // Remove jQuery UI datepicker generated image
                 .append('<span>' + pickerButtonText + '</span>');
 
+            $(element).attr('autocomplete', this.options.autoComplete ? 'on' : 'off');
+
             this._setCurrentDate(element);
         },