Fix DEM and Slope ESRI Image

app.py

@@ -224,7 +224,9 @@ def get_dem_slope_maps(ee_geometry, map_bounds, wayback_url, wayback_title, zoom
 
     # --- DEM Map ---
     dem_map = gee_folium.Map(zoom_start=zoom)
-
+    if wayback_url:
+        dem_map.add_tile_layer(url=wayback_url, name=wayback_title, attribution="Esri")
+    
     dem_map_html = "<div>No DEM data available for this area.</div>"
     try:
         dem_layer = ee.Image("USGS/SRTMGL1_003").resample("bilinear").reproject(crs="EPSG:4326", scale=30).clip(ee_geometry)
@@ -247,6 +249,9 @@ def get_dem_slope_maps(ee_geometry, map_bounds, wayback_url, wayback_title, zoom
 
     # ---Slope Map --- #
     slope_map = gee_folium.Map(zoom_start=zoom)
+    if wayback_url:
+            slope_map.add_tile_layer(url=wayback_url, name=wayback_title, attribution="Esri")
+    
     slope_map_html = "<div>No Slope data available for this area.</div>"
     try:
         dem_for_slope = ee.Image("USGS/SRTMGL1_003")