@Monduiz do you know if there's a way to tell the OSM website that you'd like the french translation? Is there a query string you can pass? Giving us a bit more information about how this issue might be fixed will help speed an implementation!

@tmcw I am using iD v2.0 for a project. I am loading iD with
id = iD.Context()
.assetPath('dist/')
.locale('fr');

iD is then in French but the authentication is loading in English when attempting to save as its probably the default. The Website can be loaded in French if ?locale=fr is added to the URL but its not working with the authorization url.

@tmcw You can see what I am trying to do here: https://monduiz.github.io/CrowiD2/

Click on Francais and you will go to the french version. When you edit -> save, you load the auth window and its in English. I am trying to make it load in French when in that language.

@Monduiz https://monduiz.github.io/CrowiD2/ is not available any more. Is the issue still important to you? Or have you found a work-around?