From: Elad Kapusta <redacted>
Date: Mon, 22 Jun 2026 17:44:39 +0000 (+0300)
Subject: Added fix for receiving metadata (usage etc.) in API streaming mode - some providers... 
X-Git-Tag: v0.6.0~2^2
X-Git-Url: http://git.99rst.org/?a=commitdiff_plain;h=5870aa28776734f7c76c7f77984bc7c7269fc1b8;p=sgasser-llm-shield.git

Added fix for receiving metadata (usage etc.) in API streaming mode - some providers use a single chunk with empty string content which fell through
---

diff --git a/src/providers/openai/stream-transformer.ts b/src/providers/openai/stream-transformer.ts
index c382ddc..c0c6a81 100644
--- a/src/providers/openai/stream-transformer.ts
+++ b/src/providers/openai/stream-transformer.ts
@@ -120,7 +120,7 @@ export function createUnmaskingStream(
                 const parsed = JSON.parse(data);
                 const content = parsed.choices?.[0]?.delta?.content;
 
-                if (typeof content === "string") {
+                if (typeof content === "string" && content !== "") {
                   const unmasked = unmaskTextContent(
                     content,
                     piiBuffer,