I already made the same request some months ago
http://wordpress.org/support/topic/plugin-wordpress-seo-by-yoast-wordpress-seo-and-multilingual-plugins?replies=1
As far as I know, the way WordPress SEO is written should break *all* multilingual plugins, not only Polylang. I tested with WP Native Dashboard and qtranslate too. And although WPML and WordPress SEO claim to be 100% compatible, I am quite sure that WPML does not load the right text domain, except of course if it reloads it as proposed below.
So currently, the only solution I can propose waiting for @joostdevalk to modify his plugin is to reload the wordpress-seo texdomain in a function hooked (for example) to ‘init’:
add_action ('init', 'reload_wp_seo_text_domain');
function reload_wp_seo_text_domain {
unload_textdomain('wordpress-seo'); // mandatory !
load_plugin_textdomain( 'wordpress-seo', false, '/wordpress-seo/languages' );
}
Not very good for performance as it is loaded two times, but this seems to work with Polylang. I did not check with other multilingual plugins.
Same problem here. Thanks Chouby for pointing me into that direction. Here is a fix that doesn’t load locale file twice. We override the Wp-Seo’s call when it’s called before ‘plugins_loaded’ action.
function reload_wp_seo_text_domain() {
load_plugin_textdomain( 'wordpress-seo', false, '/wordpress-seo/languages' );
}
add_action ('plugins_loaded', 'reload_wp_seo_text_domain');
function override_wp_seo_load_textdomain( $return, $domain ) {
if ( $domain == 'wordpress-seo' && ! did_action( 'plugins_loaded' ) ) {
return true;
}
return $return;
}
add_filter( 'override_load_textdomain', 'override_wp_seo_load_textdomain', 10, 2 );
For that to work with theme’s function.php you should probably use the ‘init’ action but for mu-plugins this works best.
Is it possible that get put to the good standard and loaded at ‘init’ or ‘plugins_loaded’ at least. Thanks.
