diff --git a/CHANGELOG.md b/CHANGELOG.md
index b7cdfe3..bfb84cb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Libcurl.js Changelog:
 
+## v0.6.19 (11/1/24):
+- Improve download speeds even more by reducing memory copies 
+- Fix wrong mime type being reported in response blob
+
 ## v0.6.18 (10/29/24):
 - Improve download speeds by increasing libcurl's internal buffer size and listening directly for websocket messages
 
diff --git a/client/javascript/http.js b/client/javascript/http.js
index 64273fb..62843c4 100644
--- a/client/javascript/http.js
+++ b/client/javascript/http.js
@@ -157,6 +157,17 @@ class HTTPSession extends CurlSession {
     for (let [header_name, header_value] of response_info.headers) {
       response_obj.headers.append(header_name, header_value);
     }
+
+    //hack to fix invalid blob type
+    let response_proto = Object.getPrototypeOf(response_obj);
+    response_obj.blob = async () => {
+      let blob = await response_proto.blob.call(response_obj);
+      let mime_type = blob.type.split(";")[0].trim();
+      Object.defineProperty(blob, "type", {
+        value: mime_type
+      });
+      return blob;
+    }
     
     return response_obj;
   }
diff --git a/client/javascript/session.js b/client/javascript/session.js
index c6c8d9a..1c7795b 100644
--- a/client/javascript/session.js
+++ b/client/javascript/session.js
@@ -41,8 +41,7 @@ class CurlSession {
 
   data_callback(request_id, chunk_ptr, chunk_size) {
     let data = Module.HEAPU8.subarray(chunk_ptr, chunk_ptr + chunk_size);
-    let chunk = new Uint8Array(data);
-    this.request_callbacks[request_id].data(chunk);
+    this.request_callbacks[request_id].data(data);
   }
 
   headers_callback(request_id, chunk_ptr, chunk_size) {
diff --git a/client/package.json b/client/package.json
index 7e50bb8..de4efa9 100644
--- a/client/package.json
+++ b/client/package.json
@@ -1,6 +1,6 @@
 {
   "name": "libcurl.js",
-  "version": "0.6.18",
+  "version": "0.6.19",
   "description": "A port of libcurl to WebAssembly, for proxying HTTPS requests from the browser with full TLS encryption",
   "main": "libcurl.mjs",
   "exports": {