Update app.py

app.py

@@ -217,6 +217,7 @@ def make_nasa_soho_videos():
     return html_out
     
 def make_nasa_soho_images(inp_src: list):
+    html_out=""
     #html_out=f"<style>{css}</style><div class='img_box_soho'>"
     for ea in inp_src:
         file_name=ea['source']