File: /var/www/vhost/disk-apps/magento.bikenow.co/vendor/magento/module-ui/etc/adminhtml/system.xml
<?xml version="1.0"?>
<!--
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
-->
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Config:etc/system_file.xsd">
<system>
<section id="dev">
<group id="js">
<field id="session_storage_logging" translate="label comment" type="select" sortOrder="100" showInDefault="1" canRestore="1">
<label>Log JS Errors to Session Storage</label>
<source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
<comment>If enabled, can be used by functional tests for extended reporting</comment>
</field>
<field id="session_storage_key" translate="label comment" type="text" sortOrder="110" showInDefault="1" canRestore="1">
<label>Log JS Errors to Session Storage Key</label>
<comment>Use this key to retrieve collected js errors</comment>
</field>
</group>
</section>
</system>
</config>