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diff --git a/libraries/ESP_Async_WebServer/examples/ResumableDownload/ResumableDownload.ino b/libraries/ESP_Async_WebServer/examples/ResumableDownload/ResumableDownload.ino
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+// SPDX-License-Identifier: LGPL-3.0-or-later
+// Copyright 2016-2025 Hristo Gochkov, Mathieu Carbou, Emil Muratov
+
+//
+// Make sure resumable downloads can be implemented (HEAD request / response and Range header)
+//
+
+#include <Arduino.h>
+#ifdef ESP32
+#include <AsyncTCP.h>
+#include <WiFi.h>
+#elif defined(ESP8266)
+#include <ESP8266WiFi.h>
+#include <ESPAsyncTCP.h>
+#elif defined(TARGET_RP2040) || defined(TARGET_RP2350) || defined(PICO_RP2040) || defined(PICO_RP2350)
+#include <RPAsyncTCP.h>
+#include <WiFi.h>
+#endif
+
+#include <ESPAsyncWebServer.h>
+
+static AsyncWebServer server(80);
+
+void setup() {
+  Serial.begin(115200);
+
+#ifndef CONFIG_IDF_TARGET_ESP32H2
+  WiFi.mode(WIFI_AP);
+  WiFi.softAP("esp-captive");
+#endif
+
+  /*
+    ❯ curl -I -X HEAD http://192.168.4.1/download
+    HTTP/1.1 200 OK
+    Content-Length: 1024
+    Content-Type: application/octet-stream
+    Connection: close
+    Accept-Ranges: bytes
+  */
+  // Ref: https://github.com/mathieucarbou/ESPAsyncWebServer/pull/80
+  server.on("/download", HTTP_HEAD | HTTP_GET, [](AsyncWebServerRequest *request) {
+    if (request->method() == HTTP_HEAD) {
+      AsyncWebServerResponse *response = request->beginResponse(200, "application/octet-stream");
+      response->addHeader(asyncsrv::T_Accept_Ranges, "bytes");
+      response->addHeader(asyncsrv::T_Content_Length, 10);
+      response->setContentLength(1024);  // make sure we can overrides previously set content length
+      response->addHeader(asyncsrv::T_Content_Type, "foo");
+      response->setContentType("application/octet-stream");  // make sure we can overrides previously set content type
+      // ...
+      request->send(response);
+    } else {
+      // ...
+    }
+  });
+
+  server.begin();
+}
+
+void loop() {
+  delay(100);
+}