diff --git a/portal/portal.js b/portal/portal.js
index 19fd334..22d460a 100644
--- a/portal/portal.js
+++ b/portal/portal.js
@@ -736,11 +736,17 @@ const Portal = {
         document.getElementById('settingState').value = biz.ADDRESSSTATE || biz.AddressState || '';
         document.getElementById('settingZip').value = biz.ADDRESSZIP || biz.AddressZip || '';
 
+        // DEBUG: show what keys the API returned
+        alert('BIZ KEYS: ' + Object.keys(biz).join(', '));
+        alert('BRANDCOLOR=' + biz.BRANDCOLOR + ' | BrandColor=' + biz.BrandColor);
+        alert('HEADERIMAGEURL=' + biz.HEADERIMAGEURL + ' | HeaderImageURL=' + biz.HeaderImageURL);
+
         // Load brand color if set
         const brandColor = biz.BRANDCOLOR || biz.BrandColor;
         if (brandColor) {
           this.brandColor = brandColor;
           const swatch = document.getElementById('brandColorSwatch');
+          alert('swatch found: ' + !!swatch + ' | brandColor: ' + brandColor);
           if (swatch) swatch.style.backgroundColor = brandColor;
         }
 
@@ -748,8 +754,13 @@ const Portal = {
         const headerPreview = document.getElementById('headerPreview');
         const headerWrapper = document.getElementById('headerPreviewWrapper');
         const headerUrl = biz.HEADERIMAGEURL || biz.HeaderImageURL;
+        alert('headerPreview found: ' + !!headerPreview + ' | headerUrl: ' + headerUrl);
         if (headerPreview && headerUrl) {
+          headerPreview.onerror = function() {
+            alert('IMG LOAD ERROR: ' + headerPreview.src);
+          };
           headerPreview.onload = function() {
+            alert('IMG LOADED OK');
             if (headerWrapper) headerWrapper.style.display = 'block';
           };
           headerPreview.src = `${headerUrl}?t=${Date.now()}`;