Quick Fix Module for Magento2 Issue #21299 (HEAD request returns 404)

di.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <type name="Magento\Framework\App\Request\HttpMethodMap">
        <arguments>
            <argument name="map" xsi:type="array">
                <item name="OPTIONS" xsi:type="string">\Magento\Framework\App\Action\HttpOptionsActionInterface</item>
                <item name="GET" xsi:type="string">\Magento\Framework\App\Action\HttpGetActionInterface</item>
                <item name="HEAD" xsi:type="string">\Magento\Framework\App\Action\HttpGetActionInterface</item>
                <item name="POST" xsi:type="string">\Magento\Framework\App\Action\HttpPostActionInterface</item>
                <item name="PUT" xsi:type="string">\Magento\Framework\App\Action\HttpPutActionInterface</item>
                <item name="PATCH" xsi:type="string">\Magento\Framework\App\Action\HttpPatchActionInterface</item>
                <item name="DELETE" xsi:type="string">\Magento\Framework\App\Action\HttpDeleteActionInterface</item>
                <item name="CONNECT" xsi:type="string">\Magento\Framework\App\Action\HttpConnectActionInterface</item>
                <item name="PROPFIND" xsi:type="string">\Magento\Framework\App\Action\HttpPropfindActionInterface</item>
                <item name="TRACE" xsi:type="string">\Magento\Framework\App\Action\HttpTraceActionInterface</item>
            </argument>
        </arguments>
    </type>
</config>

module.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
    <module name="Ripen_HeadRequest404Bug" setup_version="1.0.0"/>
</config>

registration.php

<?php
\Magento\Framework\Component\ComponentRegistrar::register(
    \Magento\Framework\Component\ComponentRegistrar::MODULE,
    'Ripen_HeadRequest404Bug',
    __DIR__
);