https://nodejs.org/docs/

[AM-77]

• URL: https://nodejs.org/docs/
• Browser version: chromium 69
• Operating system: LinuxMint

https://nodejs.org"/en"/docs/
https://nodejs.org"/en"/download/

when remove the "/en" it shows the indexof page with all of the server content instead of the 404 page.

[WaleedAshraf]

Or it should redirect to some default English version.

[refack]

when remove the "/en" it shows the indexof page with all of the server content instead of the 404 page.

https://nodejs.org/docs/ is the repository of all released API docs by version, its not an indexof. Similarly https://nodejs.org/download/.
It's a feature, maybe not intuitive, but intentional. (and makes it so we don't have a prefered language...)

P.S. we even link to it (almost) from the README https://github.com/nodejs/node#download