How is the «web/secure/use_in_adminhtml» option implemented and used?

Implementation

Usages

1. \Magento\Store\Model\Store::XML_PATH_SECURE_IN_ADMINHTML

Details: How is the \Magento\Store\Model\Store::XML_PATH_SECURE_IN_ADMINHTML constant declared and used?

2. \Magento\Backend\Model\Url::_isSecure()

3. \Magento\Captcha\Block\Adminhtml\Captcha\DefaultCaptcha::getRefreshUrl()

See also: