Update app.py

app.py

@@ -394,11 +394,14 @@ with gr.Blocks(css="style.css") as demo:
     
     demo.load(None,
           _js="""async () => {
-            let gradioURL = window.self.location.href;
-            console.log(gradioURL);
-            if (!gradioURL.endsWith("?__theme=dark")) {
-              window.self.location.replace(gradioURL + "?__theme=dark");
-            }
+              let gradioURL = new URL(window.self.location.href);
+              let params = new URLSearchParams(gradioURL.search);
+            
+              if (!params.has('__theme') || params.get('__theme') !== 'dark') {
+                params.set('__theme', 'dark');
+                gradioURL.search = params.toString();
+                window.self.location.replace(gradioURL.toString());
+              }
           }""")
 demo.queue()
 demo.launch()