Extension provides small tweaks/utilities to help develop TYPO3 in headless way on local environment.
Install extension using composer
composer require --dev friendsoftypo3/headless-dev-tools
DO NOT USE IN PRODUCTION always install as require-dev only
Just like f:debug but dies afterwards, so its output is actually visible in the frontend response.
<headlessDevTools:debug title="_all">{_all}</headlessDevTools:debug>