I18n : Language default in subdir AND root


There is something I am failing at and I do not know if it is something I don’t get or something that is designed to work this way.

http://localhost:1313/en/about/ <- working
http://localhost:1313/fr/about/ <-working
http://localhost:1313/about/ <- 404. Why not redirect to /en/about ?

Here is my config :

baseURL = "http://example.org/"
languageCode = "en"
title = "My New Hugo Site"
DefaultContentLanguage = "en"
defaultContentLanguageInSubdir = true
     title = "My blog"
     weight = 1
     title = "Mon blogue"
     weight = 2 

My content folder:


How about adding the language-less url as alias in the frontmatter of the english .md file? It will redirect then. I think it’s by design this way.

It does work with aliases, you are right.
I was excepting it to redirect to default language, but ok if it is by design. Thanks !