From 4c204556a3055cd6439ecdd183f6dbfccc606934 Mon Sep 17 00:00:00 2001
From: Ryan Turnquist <rturnq@gmail.com>
Date: Wed, 19 Feb 2025 09:44:19 -0800
Subject: [PATCH] fix: ininial sync content flush not scheduled

---
 .changeset/polite-ducks-sin.md                         | 5 +++++
 packages/runtime-class/src/runtime/html/AsyncStream.js | 1 +
 2 files changed, 6 insertions(+)
 create mode 100644 .changeset/polite-ducks-sin.md

diff --git a/.changeset/polite-ducks-sin.md b/.changeset/polite-ducks-sin.md
new file mode 100644
index 000000000..183b81fab
--- /dev/null
+++ b/.changeset/polite-ducks-sin.md
@@ -0,0 +1,5 @@
+---
+"marko": patch
+---
+
+Fix initial sync content not scheduled for flush
diff --git a/packages/runtime-class/src/runtime/html/AsyncStream.js b/packages/runtime-class/src/runtime/html/AsyncStream.js
index cac64404f..73e267c89 100644
--- a/packages/runtime-class/src/runtime/html/AsyncStream.js
+++ b/packages/runtime-class/src/runtime/html/AsyncStream.js
@@ -198,6 +198,7 @@ var proto = (AsyncStream.prototype = {
       writer.next = originalWriter.next;
       writer.state = this._state;
       writer.merge(originalWriter);
+      writer.scheduleFlush();
 
       this._state.stream = stream;
       this._state.writer = writer;