Save function and load_script_textdomain depends on editing admin user language

[dorkster100]

Let's say i have a German website, But my admin user is an English speaking person, if his account is not german, then the script language JSON that is loaded is in English. So the save() function of the gutenberg block will translate strings in English and save them to DB.

Should i not be able to do this in the custom block?

save: ( props ) => { return ( <div> <h2>{ __('Open', 'dummy-domain') }</h2> </div> ); },

Expected behavior
Display in admin area strings in admin language but save those strings in website language.

I sadly tested this only on WP 5.3.3, but i checked the i10n.php of the 5.4.1 and it seems the same. Sorry if this is already fixed.

[gziolo]

I was exploring how this type of use case could eorj in #23268. No success so far though.

[dorkster100]

With server-side rendering it could certainly work, however for now to me this seems like a bug and, the function that load_script_textdomain uses to determine_locale should not have these checks:

if ( is_admin() ) {
	$determined_locale = get_user_locale();
}

if ( isset( $_GET['_locale'] ) && 'user' === $_GET['_locale'] && wp_is_json_request() ) {
	$determined_locale = get_user_locale();
}

Maybe it would be better to use get_locale instead? It would of course be better to be able to see in user's language but save in the website's, but i would consider this as a feature and improvement?