From 001f8303c51f8a1d7678618e09c29fb02d2230a6 Mon Sep 17 00:00:00 2001
From: Sebastian Markbage <sema@fb.com>
Date: Wed, 14 Apr 2021 22:01:55 -0400
Subject: [PATCH] Hack to filter extra comments for testing purposes

---
 .../src/server/ReactDOMLegacyServerStreamConfig.js    | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/packages/react-dom/src/server/ReactDOMLegacyServerStreamConfig.js b/packages/react-dom/src/server/ReactDOMLegacyServerStreamConfig.js
index d32808f2bcec4..4cfe16091bc58 100644
--- a/packages/react-dom/src/server/ReactDOMLegacyServerStreamConfig.js
+++ b/packages/react-dom/src/server/ReactDOMLegacyServerStreamConfig.js
@@ -24,10 +24,21 @@ export function flushBuffered(destination: Destination) {}
 
 export function beginWriting(destination: Destination) {}
 
+let prevWasCommentSegmenter = false;
 export function writeChunk(
   destination: Destination,
   chunk: Chunk | PrecomputedChunk,
 ): boolean {
+  if (prevWasCommentSegmenter) {
+    prevWasCommentSegmenter = false;
+    if (chunk[0] !== '<') {
+      destination.push('<!-- -->');
+    }
+  }
+  if (chunk === '<!-- -->') {
+    prevWasCommentSegmenter = true;
+    return true;
+  }
   return destination.push(chunk);
 }