Magento 2 Documentation  2.3
Documentation for Magento 2 CMS v2.3 (December 2018)
Bug List
Global Filter::viewDirective ($construction)
: the "_absolute" key is not supported by underlying services probably this happened because of multitude of refactorings in past The original intent of _absolute parameter was to simply append specified path to a base URL bypassing any kind of processing. For example, normally you would use {{view url="css/styles.css"}} directive which would automatically resolve into something like http://example.com/pub/static/area/theme/en_US/css/styles.css But with _absolute, the expected behavior is this: {{view url="favicon.ico" _absolute=true}} should resolve into something like http://example.com/favicon.ico
Global Url::XML_PATH_USE_SECURE_KEY
Currently, this constant is slightly misleading: it says "form key", but in fact it is used by URLs, too