From e9fe17edfef19d5c31d919bc9a5c782472723e73 Mon Sep 17 00:00:00 2001
From: Martin Turoci <martin.turoci@h2o.ai>
Date: Fri, 11 Aug 2023 09:43:10 +0200
Subject: [PATCH] fix: Trigger handlers for falsy values as well. Ignore None
 only. #1484

---
 py/h2o_wave/h2o_wave/routing.py | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/py/h2o_wave/h2o_wave/routing.py b/py/h2o_wave/h2o_wave/routing.py
index 2927add210..01bca93b0e 100644
--- a/py/h2o_wave/h2o_wave/routing.py
+++ b/py/h2o_wave/h2o_wave/routing.py
@@ -14,7 +14,6 @@
 
 from typing import Optional, Callable
 from inspect import signature
-import asyncio
 import logging
 from starlette.routing import compile_path
 from .core import expando_to_dict
@@ -125,7 +124,7 @@ async def _match_predicate(predicate: Callable, func: Callable, arity: int, q: Q
             await _invoke_handler(func, arity, q, arg)
             return True
     else:
-        if arg:
+        if arg is not None:
             await _invoke_handler(func, arity, q, arg)
             return True
     return False