[keycloak-user] Login UI locale reverting to browser's on wrong user/password

[Marek Posolda]

On 06/03/18 05:19, Carlos Villegas wrote:
> Hi,
>
> I'm using the docker image version 3.4.0.Final. I've setup a realm and enabled internationalization, set default locale to English.
>
> I'm using the Javascript adapter and I set the locale I want in the login options. I have a custom theme where I've hidden Keycloak's login screen Locale selection menu. I'm sending the locale using the login options of the login call of the Javascript adapter.
>
> The keycloak login screen comes up in the correct locale I requested in the login options. However, if I put the wrong password and submit, the next error screen comes in what it seems is the web browser's default language.
>
> For example, in a English Windows 10 installation using Chrome which is in English, I request Japanese locale. The Keycloak login screen comes correctly in Japanese, but if I enter the wrong password, next error screen requesting to reenter login info is in English, all labels and error messages in English. It seems Keycloak's forgetting my locale option and using the browser's.
>
> Using the same server, from a Japanese Windows 10 machine, using Chrome in Japanese, the user requests English locale, it gets correctly the English login screen. Enters the wrong password, and the next error screen is in Japanese!. Note that this is not even the default locale I've set up in Keycloak which is English.
>
> I see in the login URL sent from the client that the ui_locales parameter is properly set to the value I want, as I said the first login screen is in the correct locale I've requested. The problem is if there's any error, the screens with error messages don't have the correct locale.
>
> Any idea of what can be happening, and if by any change this has been corrected the latest version of Keycloak. I'm haven't had the chance to test the latest version yet.
Yes, I would try to test with latest version. If it doesn't help, 
probably create JIRA with description of your usecase.

Marek
>
> Cheers,
>
> Carlos
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