Update app.py

app.py

@@ -2,10 +2,14 @@ import gradio as gr
 
 # Function to convert standard Space ID to Direct App URL
 def get_embed_url(space_id):
-    # 1. Replace slash with hyphen
-    # 2. Convert to lowercase (HF domains are lowercase)
-    # 3. Add the .hf.space domain
-    domain_friendly_id = space_id.replace("/", "-").lower()
+    # 1. Convert to lowercase (Domains must be lowercase)
+    lower_id = space_id.lower()
+    
+    # 2. Replace slash '/' with hyphen '-'
+    # 3. CRITICAL FIX: Replace underscore '_' with hyphen '-'
+    # Because subdomains cannot contain underscores
+    domain_friendly_id = lower_id.replace("/", "-").replace("_", "-")
+    
     return f"https://{domain_friendly_id}.hf.space"
 
 spaces_list = [