Fix regression on 404 redirects

WebHostLib/misc.py

@@ -87,6 +87,7 @@ def start_playing():
 @cache.cached()
 def game_info(game, lang):
     """Game Info Pages"""
+    try:
         theme = get_world_theme(game)
         secure_game_name = secure_filename(game)
         lang = secure_filename(lang)
@@ -100,6 +101,8 @@ def game_info(game, lang):
             html_from_markdown=document,
             theme=theme,
         )
+    except FileNotFoundError:
+        return abort(404)
 
 
 @app.route('/games')
@@ -112,6 +115,7 @@ def games():
 @app.route('/tutorial/<string:game>/<string:file>')
 @cache.cached()
 def tutorial(game: str, file: str):
+    try:
         theme = get_world_theme(game)
         secure_game_name = secure_filename(game)
         file = secure_filename(file)
@@ -125,6 +129,8 @@ def tutorial(game: str, file: str):
             html_from_markdown=document,
             theme=theme,
         )
+    except FileNotFoundError:
+        return abort(404)
 
 
 @app.route('/tutorial/')