Default Widgetlocker issue

Sometimes I get this blue thing which says "pull down to leave full screen" or something, and I gotta press OK on that. Can I disable it somehow? Can't find the setting.
Google Nexus 5 16GB (LG-D821)

ROM: Cataclysm 4.4.2 (KOT49H) | Bootloader: HHZ11d | Recovery: TWRP 2.7.1.1 | Baseband: M8974A-1.0.25.0.23 | Kernel: Franco (R61)