From 42853fadad5879682a3ba65f8aa250d5eb353b0c Mon Sep 17 00:00:00 2001
From: Ryan Barrett <git@ryanb.org>
Date: Mon, 2 Jan 2023 09:44:10 -0800
Subject: [PATCH] work around negotiator crash with Chrome's new Accept header

https://github.com/CottageLabs/negotiator/issues/6 . thanks for reporting @gregorlove!
---
 redirect.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/redirect.py b/redirect.py
index ea92206..9727d4f 100644
--- a/redirect.py
+++ b/redirect.py
@@ -76,7 +76,11 @@ def redir(to):
     # check conneg, serve AS2 if requested
     accept = request.headers.get('Accept')
     if accept:
-        negotiated = _negotiator.negotiate(accept)
+        try:
+            negotiated = _negotiator.negotiate(accept)
+        except ValueError:
+            # work around https://github.com/CottageLabs/negotiator/issues/6
+            negotiated = None
         if negotiated:
             type = str(negotiated.content_type)
             if type in (CONTENT_TYPE_AS2, CONTENT_TYPE_AS2_LD):