Added a more robust method of adding data attributes to the HTML

readme.txt

@@ -90,6 +90,7 @@ Yes! Pagespeed is one of our main focus points, and we strive to make the plugin
 = 1.X =
 
 Enhancements:
+* Added a more robust method of adding data attributes to the HTML.
 
 Bugfixes:
 

src/Integration/WooCommerce.php

@@ -957,18 +957,25 @@ public function cart_item_remove_link( string $woocommerce_cart_item_remove_link
 			'remove_from_cart'
 		);
 
-		$find_href                  = ' href="';
-		$replace_width_product_data = sprintf( ' data-gtmkit_product_data="%s" href="', esc_attr( wp_json_encode( $item_data ) ) );
+		if ( class_exists( 'WP_HTML_Tag_Processor' ) ) {
+			$link_html = new \WP_HTML_Tag_Processor( $woocommerce_cart_item_remove_link );
+			$link_html->next_tag();
+			$link_html->set_attribute( 'data-gtmkit_product_data', esc_attr( wp_json_encode( $item_data ) ) );
+			$woocommerce_cart_item_remove_link = $link_html->get_updated_html();
+		} else {
+			$find_href                  = ' href="';
+			$replace_width_product_data = sprintf( ' data-gtmkit_product_data="%s" href="', esc_attr( wp_json_encode( $item_data ) ) );
 
-		$substring_pos = strpos( $woocommerce_cart_item_remove_link, $find_href );
+			$substring_pos = strpos( $woocommerce_cart_item_remove_link, $find_href );
 
-		if ( $substring_pos !== false ) {
-			$woocommerce_cart_item_remove_link = substr_replace(
-				$woocommerce_cart_item_remove_link,
-				$replace_width_product_data,
-				$substring_pos,
-				strlen( $find_href )
-			);
+			if ( $substring_pos !== false ) {
+				$woocommerce_cart_item_remove_link = substr_replace(
+					$woocommerce_cart_item_remove_link,
+					$replace_width_product_data,
+					$substring_pos,
+					strlen( $find_href )
+				);
+			}
 		}
 
 		return $woocommerce_cart_item_remove_link;