diff --git a/src/main/java/cz/kamma/xtreamplayer/XtreamLibraryService.java b/src/main/java/cz/kamma/xtreamplayer/XtreamLibraryService.java
index e572d98..2350c6f 100644
--- a/src/main/java/cz/kamma/xtreamplayer/XtreamLibraryService.java
+++ b/src/main/java/cz/kamma/xtreamplayer/XtreamLibraryService.java
@@ -23,6 +23,9 @@ import java.util.Set;
 final class XtreamLibraryService {
     private static final Logger LOGGER = LogManager.getLogger(XtreamLibraryService.class);
     private static final Set<String> SENSITIVE_KEYS = Set.of("password", "pass", "pwd", "token", "authorization");
+    private static final String DEFAULT_BROWSER_UA =
+            "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 "
+                    + "(KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36";
     static final List<String> LOAD_STEPS = List.of(
             "live_categories",
             "live_streams",
@@ -417,7 +420,7 @@ final class XtreamLibraryService {
                 HttpRequest request = HttpRequest.newBuilder(candidate)
                         .GET()
                         .timeout(Duration.ofSeconds(30))
-                        .header("User-Agent", "XtreamPlayer/1.0")
+                        .header("User-Agent", DEFAULT_BROWSER_UA)
                         .header("Accept", "application/json,text/plain,*/*")
                         .build();
                 HttpResponse<byte[]> response = httpClient.send(request, HttpResponse.BodyHandlers.ofByteArray());
diff --git a/src/main/java/cz/kamma/xtreamplayer/XtreamPlayerApplication.java b/src/main/java/cz/kamma/xtreamplayer/XtreamPlayerApplication.java
index 2e92581..06fe24a 100644
--- a/src/main/java/cz/kamma/xtreamplayer/XtreamPlayerApplication.java
+++ b/src/main/java/cz/kamma/xtreamplayer/XtreamPlayerApplication.java
@@ -38,6 +38,9 @@ public final class XtreamPlayerApplication {
     private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper();
     private static final Logger LOGGER = LogManager.getLogger(XtreamPlayerApplication.class);
     private static final Pattern URI_ATTR_PATTERN = Pattern.compile("URI=\"([^\"]+)\"");
+    private static final String DEFAULT_BROWSER_UA =
+            "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 "
+                    + "(KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36";
     private static final HttpClient HTTP_CLIENT = HttpClient.newBuilder()
             .connectTimeout(Duration.ofSeconds(20))
             .followRedirects(HttpClient.Redirect.NORMAL)
@@ -237,12 +240,22 @@ public final class XtreamPlayerApplication {
             }
 
             try {
-                HttpRequest request = HttpRequest.newBuilder(target)
+                HttpRequest.Builder requestBuilder = HttpRequest.newBuilder(target)
                         .GET()
                         .timeout(Duration.ofSeconds(60))
-                        .header("User-Agent", "XtreamPlayer/1.0")
-                        .header("Accept", "*/*")
-                        .build();
+                        .header("User-Agent", firstNonBlank(
+                                exchange.getRequestHeaders().getFirst("User-Agent"),
+                                DEFAULT_BROWSER_UA
+                        ))
+                        .header("Accept", firstNonBlank(
+                                exchange.getRequestHeaders().getFirst("Accept"),
+                                "*/*"
+                        ));
+                copyRequestHeaderIfPresent(exchange, requestBuilder, "Range");
+                copyRequestHeaderIfPresent(exchange, requestBuilder, "If-Range");
+                copyRequestHeaderIfPresent(exchange, requestBuilder, "Referer");
+                copyRequestHeaderIfPresent(exchange, requestBuilder, "Origin");
+                HttpRequest request = requestBuilder.build();
                 HttpResponse<byte[]> response = HTTP_CLIENT.send(request, HttpResponse.BodyHandlers.ofByteArray());
                 String contentType = response.headers().firstValue("Content-Type").orElse("application/octet-stream");
                 byte[] body = response.body() == null ? new byte[0] : response.body();
@@ -255,6 +268,10 @@ public final class XtreamPlayerApplication {
                     return;
                 }
 
+                copyResponseHeaderIfPresent(response, exchange, "Accept-Ranges");
+                copyResponseHeaderIfPresent(response, exchange, "Content-Range");
+                copyResponseHeaderIfPresent(response, exchange, "Cache-Control");
+                copyResponseHeaderIfPresent(response, exchange, "Expires");
                 exchange.getResponseHeaders().set("Content-Type", contentType);
                 writeBytes(exchange, response.statusCode(), body, contentType);
             } catch (InterruptedException interruptedException) {
@@ -618,7 +635,7 @@ public final class XtreamPlayerApplication {
         HttpRequest request = HttpRequest.newBuilder(uri)
                 .GET()
                 .timeout(Duration.ofSeconds(25))
-                .header("User-Agent", "XtreamPlayer/1.0")
+                .header("User-Agent", DEFAULT_BROWSER_UA)
                 .header("Accept", "application/json,text/plain,*/*")
                 .build();
         return HTTP_CLIENT.send(request, HttpResponse.BodyHandlers.ofByteArray());
@@ -749,6 +766,27 @@ public final class XtreamPlayerApplication {
         return "/api/stream-proxy?url=" + urlEncode(absoluteUrl);
     }
 
+    private static void copyRequestHeaderIfPresent(HttpExchange exchange, HttpRequest.Builder requestBuilder, String headerName) {
+        String value = exchange.getRequestHeaders().getFirst(headerName);
+        if (value != null && !value.isBlank()) {
+            requestBuilder.header(headerName, value);
+        }
+    }
+
+    private static void copyResponseHeaderIfPresent(HttpResponse<?> response, HttpExchange exchange, String headerName) {
+        String value = response.headers().firstValue(headerName).orElse("");
+        if (!value.isBlank()) {
+            exchange.getResponseHeaders().set(headerName, value);
+        }
+    }
+
+    private static String firstNonBlank(String primary, String fallback) {
+        if (primary != null && !primary.isBlank()) {
+            return primary;
+        }
+        return fallback;
+    }
+
     private static Map<String, String> parseKeyValue(String raw) {
         Map<String, String> result = new LinkedHashMap<>();
         if (raw == null || raw.isBlank()) {