From 1fae077993b3ca53c242b359ee4a7d71f39e4063 Mon Sep 17 00:00:00 2001
From: Carlos Longarela <carlos@longarela.eu>
Date: Wed, 19 Aug 2020 22:33:47 +0200
Subject: [PATCH 1/3] wp_kses_allowed_html allow data-lang attribute

---
 index.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/index.php b/index.php
index da5a0f4..ae4d6fd 100644
--- a/index.php
+++ b/index.php
@@ -193,10 +193,10 @@ function mkaz_prism_theme_css_ver() {
 add_filter( 'wp_kses_allowed_html', function( $tags ) {
 
 	if ( is_array( $tags['code'] ) ) {
-		$tags['code']['lang'] = array();
+		$tags['code']['data-lang'] = array();
 	} else {
 		$tags['code'] = array(
-			'lang' => array(),
+			'data-lang' => array(),
 		);
 	}
     return $tags;

From f7ad0af6b7e457859bf0445094eadc7c4049f9c8 Mon Sep 17 00:00:00 2001
From: Carlos Longarela <carlos@longarela.eu>
Date: Wed, 19 Aug 2020 22:39:11 +0200
Subject: [PATCH 2/3] code attribute changed from lang to data-lang,
 accessibility

---
 src/index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/index.js b/src/index.js
index b07e4e7..9c39c9e 100644
--- a/src/index.js
+++ b/src/index.js
@@ -28,7 +28,7 @@ const addSyntaxToCodeBlock = ( settings ) => {
 				type: 'string',
 				selector: 'code',
 				source: 'attribute',
-				attribute: 'lang',
+				attribute: 'data-lang',
 			},
 			lineNumbers: {
 				type: 'boolean',

From d29c715c12a21c29af087439e43b1bebc0da9707 Mon Sep 17 00:00:00 2001
From: Carlos Longarela <carlos@longarela.eu>
Date: Wed, 19 Aug 2020 22:43:24 +0200
Subject: [PATCH 3/3] Changed lang attribute to data-lang, screen readers

---
 src/save.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/save.js b/src/save.js
index dd37e85..ac09262 100644
--- a/src/save.js
+++ b/src/save.js
@@ -5,7 +5,7 @@ const save = ( { attributes } ) => {
 	cls = ( attributes.lineNumbers ) ? cls + ' line-numbers' : cls;
 	return (
 		<pre title={ attributes.title }>
-			<code lang={ attributes.language } className={ cls }>
+			<code data-lang={ attributes.language } className={ cls }>
 				{ attributes.content }
 			</code>
 		</pre>