diff --git a/jetty-core/jetty-client/src/main/java/org/eclipse/jetty/client/transport/HttpSender.java b/jetty-core/jetty-client/src/main/java/org/eclipse/jetty/client/transport/HttpSender.java
index 69bade58dd68..8d5b8888cc81 100644
--- a/jetty-core/jetty-client/src/main/java/org/eclipse/jetty/client/transport/HttpSender.java
+++ b/jetty-core/jetty-client/src/main/java/org/eclipse/jetty/client/transport/HttpSender.java
@@ -100,7 +100,6 @@ protected boolean queuedToBegin(HttpExchange exchange)
             LOG.debug("Request begin {}", request);
         request.notifyBegin();
 
-        contentSender.exchange = exchange;
         contentSender.expect100 = expects100Continue(request);
 
         if (updateRequestState(RequestState.TRANSIENT, RequestState.BEGIN))
@@ -390,7 +389,10 @@ private void internalAbort(Throwable failure)
     {
         HttpExchange exchange = getHttpExchange();
         if (exchange == null)
+        {
+            LOG.info("ISSUE-11841 no exchange in internalAbort - {}", this);
             return;
+        }
         anyToFailure(failure);
         abortRequest(exchange);
     }
@@ -424,10 +426,11 @@ protected String relativize(String path)
     @Override
     public String toString()
     {
-        return String.format("%s@%x(req=%s,failure=%s)",
+        return String.format("%s@%x(req=%s,cs=%s,failure=%s)",
             getClass().getSimpleName(),
             hashCode(),
             requestState,
+            contentSender,
             failure);
     }
 
@@ -469,7 +472,6 @@ private enum RequestState
     private class ContentSender extends IteratingCallback
     {
         // Fields that are set externally.
-        private volatile HttpExchange exchange;
         private volatile Runnable proceedAction;
         private volatile boolean expect100;
         // Fields only used internally.
@@ -484,7 +486,6 @@ private class ContentSender extends IteratingCallback
         @Override
         public boolean reset()
         {
-            exchange = null;
             proceedAction = null;
             expect100 = false;
             chunk = null;
@@ -500,7 +501,12 @@ public boolean reset()
         @Override
         protected Action process() throws Throwable
         {
-            HttpExchange exchange = this.exchange;
+            HttpExchange exchange = getHttpExchange();
+            if (exchange == null)
+            {
+                LOG.info("ISSUE-11841 no exchange in process - {}", HttpSender.this);
+                return Action.IDLE;
+            }
             if (complete)
             {
                 if (success)
@@ -581,6 +587,19 @@ protected void onSuccess()
             }
             else
             {
+                HttpExchange exchange = getHttpExchange();
+                if (exchange == null)
+                {
+                    LOG.info("ISSUE-11841 no exchange in onSuccess - {}", HttpSender.this);
+                    if (chunk != null)
+                    {
+                        LOG.info("ISSUE-11841 releasing chunk - {}", HttpSender.this);
+                        chunk.release();
+                        chunk = null;
+                    }
+                    return;
+                }
+
                 boolean proceed = true;
                 if (committed)
                 {
@@ -641,5 +660,20 @@ public InvocationType getInvocationType()
         {
             return InvocationType.NON_BLOCKING;
         }
+
+        @Override
+        public String toString()
+        {
+            return super.toString() +
+                " proceedAction=" + proceedAction +
+                " expect100=" + expect100 +
+                " chunk=" + chunk +
+                " contentBuffer=" + BufferUtil.toDetailString(contentBuffer) +
+                " committed=" + committed +
+                " success=" + success +
+                " complete=" + complete +
+                " abort=" + abort +
+                " demanded=" + demanded;
+        }
     }
 }
diff --git a/jetty-ee10/jetty-ee10-proxy/src/test/java/org/eclipse/jetty/ee10/proxy/AsyncMiddleManServletTest.java b/jetty-ee10/jetty-ee10-proxy/src/test/java/org/eclipse/jetty/ee10/proxy/AsyncMiddleManServletTest.java
index c1218587ab0b..b32b99487ad6 100644
--- a/jetty-ee10/jetty-ee10-proxy/src/test/java/org/eclipse/jetty/ee10/proxy/AsyncMiddleManServletTest.java
+++ b/jetty-ee10/jetty-ee10-proxy/src/test/java/org/eclipse/jetty/ee10/proxy/AsyncMiddleManServletTest.java
@@ -61,6 +61,7 @@
 import org.eclipse.jetty.client.HttpProxy;
 import org.eclipse.jetty.client.Request;
 import org.eclipse.jetty.client.Response;
+import org.eclipse.jetty.client.StringRequestContent;
 import org.eclipse.jetty.ee10.servlet.ServletContextHandler;
 import org.eclipse.jetty.ee10.servlet.ServletHolder;
 import org.eclipse.jetty.http.HttpHeader;
@@ -79,6 +80,7 @@
 import org.eclipse.jetty.util.IO;
 import org.eclipse.jetty.util.Utf8StringBuilder;
 import org.eclipse.jetty.util.ajax.JSON;
+import org.eclipse.jetty.util.component.LifeCycle;
 import org.eclipse.jetty.util.thread.QueuedThreadPool;
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.Test;
@@ -163,11 +165,32 @@ private void startClient() throws Exception
     }
 
     @AfterEach
-    public void dispose() throws Exception
+    public void dispose()
     {
-        client.stop();
-        proxy.stop();
-        server.stop();
+        LifeCycle.stop(client);
+        LifeCycle.stop(proxy);
+        LifeCycle.stop(server);
+    }
+
+    @Test
+    public void testExpect100WithBody() throws Exception
+    {
+        startServer(new EchoHttpServlet());
+        startProxy(new AsyncMiddleManServlet());
+        startClient();
+
+        for (int i = 0; i < 100; i++)
+        {
+            String body = Character.toString('a' + (i % 26)); // only use 'a' to 'z'
+            ContentResponse response = client.newRequest("localhost", serverConnector.getLocalPort())
+                .path("/" + body)
+                .headers(h -> h.put(HttpHeader.EXPECT, HttpHeaderValue.CONTINUE))
+                .timeout(5, TimeUnit.SECONDS)
+                .body(new StringRequestContent(body))
+                .send();
+            assertEquals(200, response.getStatus());
+            assertEquals(body, response.getContentAsString());
+        }
     }
 
     @Test
diff --git a/jetty-ee9/jetty-ee9-proxy/src/test/java/org/eclipse/jetty/ee9/proxy/AsyncMiddleManServletTest.java b/jetty-ee9/jetty-ee9-proxy/src/test/java/org/eclipse/jetty/ee9/proxy/AsyncMiddleManServletTest.java
index 064ac6687455..433e59a41f2c 100644
--- a/jetty-ee9/jetty-ee9-proxy/src/test/java/org/eclipse/jetty/ee9/proxy/AsyncMiddleManServletTest.java
+++ b/jetty-ee9/jetty-ee9-proxy/src/test/java/org/eclipse/jetty/ee9/proxy/AsyncMiddleManServletTest.java
@@ -61,6 +61,7 @@
 import org.eclipse.jetty.client.HttpProxy;
 import org.eclipse.jetty.client.Request;
 import org.eclipse.jetty.client.Response;
+import org.eclipse.jetty.client.StringRequestContent;
 import org.eclipse.jetty.ee9.servlet.ServletContextHandler;
 import org.eclipse.jetty.ee9.servlet.ServletHolder;
 import org.eclipse.jetty.http.HttpHeader;
@@ -163,11 +164,32 @@ private void startClient() throws Exception
     }
 
     @AfterEach
-    public void dispose() throws Exception
+    public void dispose()
     {
         LifeCycle.stop(client);
         LifeCycle.stop(proxy);
-        LifeCycle.stop(proxy);
+        LifeCycle.stop(server);
+    }
+
+    @Test
+    public void testExpect100WithBody() throws Exception
+    {
+        startServer(new EchoHttpServlet());
+        startProxy(new AsyncMiddleManServlet());
+        startClient();
+
+        for (int i = 0; i < 100; i++)
+        {
+            String body = Character.toString('a' + (i % 26)); // only use 'a' to 'z'
+            ContentResponse response = client.newRequest("localhost", serverConnector.getLocalPort())
+                .path("/" + body)
+                .headers(h -> h.put(HttpHeader.EXPECT, HttpHeaderValue.CONTINUE))
+                .timeout(5, TimeUnit.SECONDS)
+                .body(new StringRequestContent(body))
+                .send();
+            assertEquals(200, response.getStatus());
+            assertEquals(body, response.getContentAsString());
+        }
     }
 
     @Test