Merge pull request #29 from humanmade/use-window-datalayer

Check for existing window.dataLayer, append if found.
humanmade · May 30, 2022 · fc7d14e · fc7d14e
2 parents ab59419 + cf1efe9
commit fc7d14e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/inc/template-tags.php b/inc/template-tags.php
@@ -19,7 +19,7 @@ function get_gtm_tag( string $container_id, array $data_layer = [], string $data
 
 	if ( ! empty( $data_layer ) ) {
 		$tag .= sprintf(
-			'<script>var %1$s = [ %2$s ];</script>',
+			'<script>window.%1$s = window.%1$s || []; window.%1$s.push([ %2$s ]);</script>',
 			$data_layer_var,
 			wp_json_encode( $data_layer )
 		);