diff -u b/core/tests/Drupal/FunctionalJavascriptTests/JSWebAssert.php b/core/tests/Drupal/FunctionalJavascriptTests/JSWebAssert.php
--- b/core/tests/Drupal/FunctionalJavascriptTests/JSWebAssert.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/JSWebAssert.php
@@ -373,8 +373,6 @@
    *
    * @throws \Exception
    *   Throws an exception on use.
-   *
-   * @internal
    */
   public function statusCodeEquals($code) {
     $this->statusCodeNotEquals(3);
@@ -389,8 +387,6 @@
    *
    * @throws \Exception
    *   Throws an exception on use.
-   *
-   * @internal
    */
   public function statusCodeNotEquals($code) {
     throw new UnsupportedDriverActionException('The use of statusCodeNotEquals() is not available in a functional JavaScript test.');
@@ -404,8 +400,6 @@
    *
    * @throws \Exception
    *   Throws an exception on use.
-   *
-   * @internal
    */
   public function responseHeaderEquals($name, $value) {
     throw new UnsupportedDriverActionException('The use of responseHeaderEquals() is not available in a functional JavaScript test.');
@@ -419,8 +413,6 @@
    *
    * @throws \Exception
    *   Throws an exception on use.
-   *
-   * @internal
    */
   public function responseHeaderNotEquals($name, $value) {
     throw new UnsupportedDriverActionException('The use of responseHeaderEquals() is not available in a functional JavaScript test.');