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See Release Notes

  • Bug fixes for general core bugs in 3.10.x will end 8 November 2021 (12 months).
  • Bug fixes for security issues in 3.10.x will end 9 May 2022 (18 months).
  • PHP version: minimum PHP 7.2.0 Note: minimum PHP version has increased since Moodle 3.8. PHP 7.3.x and 7.4.x are supported too.
   1  <?php
   2  
   3  /**

   4   * Module adds the target-based noreferrer attribute transformation to a tags.  It

   5   * is enabled by HTML.TargetNoreferrer

   6   */
   7  class HTMLPurifier_HTMLModule_TargetNoreferrer extends HTMLPurifier_HTMLModule
   8  {
   9      /**

  10       * @type string

  11       */
  12      public $name = 'TargetNoreferrer';
  13  
  14      /**

  15       * @param HTMLPurifier_Config $config

  16       */
  17      public function setup($config) {
  18          $a = $this->addBlankElement('a');
  19          $a->attr_transform_post[] = new HTMLPurifier_AttrTransform_TargetNoreferrer();
  20      }
  21  }