diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5f8b246..c1245b4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Libcurl.js Changelog:
 
+## v0.6.3 (3/20/24):
+- Fix an error during websocket cleanup
+
 ## v0.6.1 (3/20/24):
 - Fix NPM package exports
 
diff --git a/README.md b/README.md
index 8a599fa..d9aa4d6 100644
--- a/README.md
+++ b/README.md
@@ -155,7 +155,7 @@ The `CurlWebSocket.send` function can be used to send data to the websocket. The
 You can call `CurlWebSocket.close` to close and clean up the websocket.
 
 ```js
-let ws = new libcurl.CurlWebSocket("wss://echo.websocket.org", [], {verbose: 1});
+let ws = new libcurl.CurlWebSocket("wss://echo.websocket.in/", [], {verbose: 1});
 ws.onopen = () => {
   console.log("ws connected!");
   ws.send("hello".repeat(100));
@@ -167,7 +167,7 @@ ws.onmessage = (data) => {
 
 You can also use the `libcurl.WebSocket` object, which works identically to the regular [WebSocket](https://developer.mozilla.org/en-US/docs/Web/API/WebSocket) object. It uses the same arguments as the simpler `CurlWebSocket` API.
 ```js
-let ws = new libcurl.WebSocket("wss://echo.websocket.org");
+let ws = new libcurl.WebSocket("wss://echo.websocket.in/");
 ws.addEventListener("open", () => {
   console.log("ws connected!");
   ws.send("hello".repeat(128));
diff --git a/client/javascript/main.js b/client/javascript/main.js
index 37f2efb..1e09b6d 100644
--- a/client/javascript/main.js
+++ b/client/javascript/main.js
@@ -106,7 +106,7 @@ api = {
   WispConnection: WispConnection,
   transport: "wisp",
 
-  WebSocket: WebSocket,
+  WebSocket: FakeWebSocket,
   CurlWebSocket: CurlWebSocket,
   TLSSocket: TLSSocket,
   HTTPSession: HTTPSession,
diff --git a/client/javascript/session.js b/client/javascript/session.js
index 1c4948f..bac98aa 100644
--- a/client/javascript/session.js
+++ b/client/javascript/session.js
@@ -132,7 +132,7 @@ class CurlSession {
       catch (e) {
         //the readable stream has been closed elsewhere, so cancel the request
         if (e instanceof TypeError) {
-          finish_callback(-1);
+          end_callback(-1);
         }
         else {
           throw e;
diff --git a/client/javascript/websocket.js b/client/javascript/websocket.js
index 9e95dc6..e371582 100644
--- a/client/javascript/websocket.js
+++ b/client/javascript/websocket.js
@@ -107,7 +107,7 @@ class CurlWebSocket extends CurlSession {
 
   cleanup(error=0) {
     if (this.http_handle) {
-      this.remove_handle(this.http_handle);
+      this.remove_request(this.http_handle);
       this.http_handle = null;
       super.close();
     }
diff --git a/client/package.json b/client/package.json
index 7d4186d..8940462 100644
--- a/client/package.json
+++ b/client/package.json
@@ -1,6 +1,6 @@
 {
   "name": "libcurl.js",
-  "version": "0.6.1",
+  "version": "0.6.3",
   "description": "An experimental port of libcurl to WebAssembly for use in the browser.",
   "main": "libcurl.mjs",
   "exports": {
diff --git a/client/tests/scripts/test_websocket.js b/client/tests/scripts/test_websocket.js
index 4a10cf3..23d6bc0 100644
--- a/client/tests/scripts/test_websocket.js
+++ b/client/tests/scripts/test_websocket.js
@@ -1,8 +1,8 @@
 function test() {
-  let message_len = 128*1024;
+  let message_len = 1024;
 
   return new Promise((resolve, reject) => {
-    let ws = new libcurl.WebSocket("wss://echo.websocket.org");
+    let ws = new libcurl.WebSocket("wss://echo.websocket.in/");
     ws.addEventListener("open", () => {
       ws.send("hello".repeat(message_len));
     });
@@ -12,8 +12,8 @@ function test() {
       messages += 1;
       if (messages >= 2) {
         if (event.data !== "hello".repeat(message_len)) reject("unexpected response");
-        if (messages >= 11) resolve();
-        ws.send("hello".repeat(message_len));
+        else if (messages >= 11) resolve();
+        else ws.send("hello".repeat(message_len));
       }
     });