PHP Класс FluidTYPO3\Vhs\ViewHelpers\Page\Header\MetaViewHelper
If you use the ViewHelper in a plugin it has to be USER
not USER_INT, what means it has to be cached!
Наследование:
extendsTYPO3\CMS\Fluid\Core\ViewHelper\AbstractTagBasedViewHelper, use traitFluidTYPO3\Vhs\Traits\TagViewHelperTrait, use traitFluidTYPO3\Vhs\Traits\PageRendererTrait