Fix

index.html

@@ -19,9 +19,12 @@ pipeline = transformers.pipeline
 pipe = await pipeline('zero-shot-image-classification')
 
 async def classify(image, classes):
-	data = await pipe(as_url(image), [c for c in classes.split(",") if c])
-	result = {item['label']: round(item['score'], 2) for item in data}
-	return result
+    classes = [c for c in classes.split(",") if c]
+    if not classes:
+        return {}
+    data = await pipe(as_url(image), classes)
+    result = {item['label']: round(item['score'], 2) for item in data}
+    return result
 
 demo = gr.Interface(
     classify,