From 88411a1f52c09776b0d25edf18b29e6245bed5ec Mon Sep 17 00:00:00 2001
From: yhirose <yuji.hirose.bug@gmail.com>
Date: Wed, 27 Jan 2021 14:35:32 +0000
Subject: [PATCH] Fix #846

---
 httplib.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/httplib.h b/httplib.h
index be1f9d6..bcc5d5f 100644
--- a/httplib.h
+++ b/httplib.h
@@ -2484,7 +2484,7 @@ public:
       strm_.next_out = reinterpret_cast<Bytef *>(buff.data());
 
       ret = deflate(&strm_, flush);
-      assert(ret != Z_STREAM_ERROR);
+      if (ret == Z_STREAM_ERROR) { return false; }
 
       if (!callback(buff.data(), buff.size() - strm_.avail_out)) {
         return false;