Anandia Muhammad Yudhistira

But why "named route" uses snake_case ? 

if the file is in the form of an image, it doesn't download it, but displays it how to be downloaded?

client side validation ini harus muncul sebelum user mengklik submit, kalau validasi setelah submit itu pakai server side validation aja jadi pakai ajax ataupun tidak tetap diperlukan

 ini contoh di YII2 menggunakan ActiveForm Validasi dilakukan secara realtime, ketika user sedang mengetik/onkeyup/onchange Jadi sebelum user menekan submit, validasi sudah harus dilakukan

i also faced this issue... replaced with the Light theme also appears the issue "in skin 'LightSkin' layout"