void Element::webkitRequestFullScreen(unsigned short flags)
{
    FullscreenController::from(document())->requestFullScreenForElement(this, (flags | LEGACY_MOZILLA_REQUEST), FullscreenController::EnforceIFrameAllowFullScreenRequirement);
}

This vulnerability category highlights issues in resource management where failures to properly release memory, file handles, or other resources can degrade system performance or enable denial-of-service conditions.