Always show server location in ASGI

sanic/mixins/runner.py

@@ -69,6 +69,7 @@ else:
 
 class RunnerMixin(metaclass=SanicMeta):
     _app_registry: Dict[str, Sanic]
+    asgi: bool
     config: Config
     listeners: Dict[str, List[ListenerType[Any]]]
     state: ApplicationState
@@ -525,7 +526,7 @@ class RunnerMixin(metaclass=SanicMeta):
                     )
                 )
             else:
-                server = ""
+                server = "ASGI" if self.asgi else "unknown"
 
             display = {
                 "mode": " ".join(mode),
@@ -571,8 +572,12 @@ class RunnerMixin(metaclass=SanicMeta):
 
     @property
     def serve_location(self) -> str:
+        try:
             server_settings = self.state.server_info[0].settings
             return self.get_server_location(server_settings)
+        except IndexError:
+            location = "ASGI" if self.asgi else "unknown"
+            return f"http://<{location}>"
 
     @staticmethod
     def get_server_location(