Just working on select option list and related.

src/routes/+layout.svelte

@@ -1,6 +1,7 @@
 <script lang="ts">
 /** @type {import('./$types').LayoutData} */
 export let data: any;
+let log_lvl = 0;
 // console.log(`ae_ Svelte root +layout data:`, data);
 
 import { onMount } from 'svelte';
@@ -214,8 +215,10 @@ onMount(() => {
 
 
     window.addEventListener('message', function(event) {
-        console.log('Message received in root +layout.svelte:');
-        console.log(event);
+        if (log_lvl) {
+            console.log('Message received in root +layout.svelte:');
+            console.log(event);
+        }
 
         if (event.data.type == 'api_download_blob') {
             console.log('Download blob (file) message received:', event.data);