diff --git a/packages/react-dom/src/server/ReactDOMFizzServerBrowser.js b/packages/react-dom/src/server/ReactDOMFizzServerBrowser.js
index 15fc69437ca15..a07967ca34f98 100644
--- a/packages/react-dom/src/server/ReactDOMFizzServerBrowser.js
+++ b/packages/react-dom/src/server/ReactDOMFizzServerBrowser.js
@@ -43,14 +43,9 @@ function renderToReadableStream(
   return new Promise((resolve, reject) => {
     function onCompleteShell() {
       const stream = new ReadableStream({
+        type: 'bytes',
         pull(controller) {
-          // Pull is called immediately even if the stream is not passed to anything.
-          // That's buffering too early. We want to start buffering once the stream
-          // is actually used by something so we can give it the best result possible
-          // at that point.
-          if (stream.locked) {
-            startFlowing(request, controller);
-          }
+          startFlowing(request, controller);
         },
         cancel(reason) {},
       });
diff --git a/packages/react-server-dom-webpack/src/ReactFlightDOMServerBrowser.js b/packages/react-server-dom-webpack/src/ReactFlightDOMServerBrowser.js
index 9d632dfb0712e..35518c9d33bf2 100644
--- a/packages/react-server-dom-webpack/src/ReactFlightDOMServerBrowser.js
+++ b/packages/react-server-dom-webpack/src/ReactFlightDOMServerBrowser.js
@@ -31,17 +31,12 @@ function renderToReadableStream(
     options ? options.onError : undefined,
   );
   const stream = new ReadableStream({
+    type: 'bytes',
     start(controller) {
       startWork(request);
     },
     pull(controller) {
-      // Pull is called immediately even if the stream is not passed to anything.
-      // That's buffering too early. We want to start buffering once the stream
-      // is actually used by something so we can give it the best result possible
-      // at that point.
-      if (stream.locked) {
-        startFlowing(request, controller);
-      }
+      startFlowing(request, controller);
     },
     cancel(reason) {},
   });