Update app.py

app.py

@@ -73,7 +73,7 @@ def query(prompt, model, is_negative=False, steps=30, cfg_scale=7, sampler="DPM+
         "steps": steps,
         "cfg_scale": cfg_scale,
         "seed": seed if seed != -1 else random.randint(1, 1000000000),
-        "size": f'{width}×{height}'
+        "size": [width, height]
         }
 
     image_bytes = requests.post(API_URL, headers=headers, json=payload).content