diff --git a/quickjs/src/main/java/com/fongmi/quickjs/bean/Res.java b/quickjs/src/main/java/com/fongmi/quickjs/bean/Res.java
index f73c9e3bd..cec5aaf76 100644
--- a/quickjs/src/main/java/com/fongmi/quickjs/bean/Res.java
+++ b/quickjs/src/main/java/com/fongmi/quickjs/bean/Res.java
@@ -1,13 +1,18 @@
 package com.fongmi.quickjs.bean;
 
 import android.text.TextUtils;
+import android.util.Base64;
 
 import com.github.catvod.utils.Json;
 import com.google.gson.Gson;
 import com.google.gson.JsonElement;
 import com.google.gson.annotations.SerializedName;
 
+import java.io.ByteArrayInputStream;
+import java.util.Arrays;
+import java.util.List;
 import java.util.Map;
+import java.util.Objects;
 
 public class Res {
 
@@ -43,4 +48,16 @@ public class Res {
     public Map<String, String> getHeader() {
         return Json.toMap(getHeaders());
     }
+
+    public String getContentType() {
+        Map<String, String> header = getHeader();
+        List<String> keys = Arrays.asList("Content-Type", "content-type");
+        for (String key : keys) if (header.containsKey(key)) return Objects.requireNonNull(header.get(key));
+        return "application/octet-stream";
+    }
+
+    public ByteArrayInputStream getStream() {
+        if (getBuffer() == 2) return new ByteArrayInputStream(Base64.decode(getContent(), Base64.DEFAULT));
+        return new ByteArrayInputStream(getContent().getBytes());
+    }
 }
diff --git a/quickjs/src/main/java/com/fongmi/quickjs/utils/JSUtil.java b/quickjs/src/main/java/com/fongmi/quickjs/utils/JSUtil.java
index d48881def..374fb1be5 100644
--- a/quickjs/src/main/java/com/fongmi/quickjs/utils/JSUtil.java
+++ b/quickjs/src/main/java/com/fongmi/quickjs/utils/JSUtil.java
@@ -19,7 +19,7 @@ public class JSUtil {
     public static JSArray toArray(QuickJSContext ctx, byte[] bytes) {
         JSArray array = ctx.createNewJSArray();
         if (bytes == null || bytes.length == 0) return array;
-        for (int i = 0; i < bytes.length; i++) array.set(bytes[i], i);
+        for (int i = 0; i < bytes.length; i++) array.set((int) bytes[i], i);
         return array;
     }