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Reported for: WPML SEO 2.1.0

Topic Tags: Compatibility

Overview of the issue

If you are using the Rank Math SEO plugin, specifically the Pro version with the News Sitemap feature enabled, you may encounter an issue where <news:language> tags within the news-sitemap.xml file incorrectly display the language code of the site’s default language for posts in secondary languages..


Please, make sure of having a full site backup of your site before proceeding.

  • Open …/wp-content/plugins/seo-by-rank-math-pro/includes/modules/news-sitemap/class-news-sitemap.php file.
  • Replace:
    		$output .= $this->get_news_publication( $renderer );
  • With:
    		//start WPML workaround
    		global $sitepress;
    			[ $sitepress, 'get_pages_adjust_ids' ],
    		$my_post_language_details = apply_filters( 'wpml_post_language_details', NULL, url_to_postid($url["loc"]) );
    		$xmlString = $this->get_news_publication( $renderer );
    		$pattern = '/(<news:language>)[^<>]*(</news:language>)/i';
    		$replacement = '${1}'. $my_post_language_details["language_code"] .'$2';
    		$modifiedXmlString = preg_replace($pattern, $replacement, $xmlString);
    		$output .= $modifiedXmlString;
    		//end WPML workaround
  • In addition, you may also need to disable sitemap caching. To do this, you can add the following line to the functions.php file of your theme:
    add_filter( 'rank_math/sitemap/enable_caching', '__return_false');

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