Set the default language based on Accept-Language

app.py

@@ -497,9 +497,17 @@ with gr.Blocks() as demo_submission:
         submission_result,
     )
 
+
 # Main demo
 
 
+def set_default_language(request: gr.Request) -> gr.Dropdown:
+    if request.headers["Accept-Language"].split(",")[0].lower().startswith("ja"):
+        return gr.Dropdown(value="🇯🇵 JP")
+    else:
+        return gr.Dropdown(value="🇺🇸 EN")
+
+
 def update_language(language: str) -> gr.Markdown:
     if language == "🇺🇸 EN":
         return gr.Markdown(value=INTRODUCTION_TEXT)
@@ -541,6 +549,7 @@ with gr.Blocks(css=custom_css, css_paths="style.css", theme=gr.themes.Base()) as
             )
     gr.HTML(BOTTOM_LOGO)
 
+    demo.load(fn=set_default_language, outputs=language)
     language.change(
         fn=update_language,
         inputs=language,