diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b4ef6b5..95b0df9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,7 +16,7 @@ jobs:
 
       - name: Install webrpc-gen
         run: |
-          curl -o ./webrpc-gen -fLJO https://github.com/webrpc/webrpc/releases/download/v0.14.0/webrpc-gen.linux-amd64
+          curl -o ./webrpc-gen -fLJO https://github.com/webrpc/webrpc/releases/download/v0.19.3/webrpc-gen.linux-amd64
           chmod +x ./webrpc-gen
           echo $PWD >> $GITHUB_PATH
 
diff --git a/_examples/node-ts/server/server.gen.ts b/_examples/node-ts/server/server.gen.ts
index 92f570f..658dbaf 100644
--- a/_examples/node-ts/server/server.gen.ts
+++ b/_examples/node-ts/server/server.gen.ts
@@ -1,7 +1,7 @@
 /* eslint-disable */
-// node-ts v1.0.0 2167bb6fb0a186ff099cd8a309c6ffbbd7d1b9c0
+// node-ts v1.0.0 bd572b349e330d81cc30b1ff3cf69d7ab59f1619
 // --
-// Code generated by webrpc-gen@v0.14.0 with ../../ generator. DO NOT EDIT.
+// Code generated by webrpc-gen@v0.19.3 with ../../ generator. DO NOT EDIT.
 //
 // webrpc-gen -schema=service.ridl -target=../../ -server -out=./server/server.gen.ts
 
@@ -12,7 +12,7 @@ export const WebRPCVersion = "v1"
 export const WebRPCSchemaVersion = "v1.0.0"
 
 // Schema hash generated from your RIDL schema
-export const WebRPCSchemaHash = "2167bb6fb0a186ff099cd8a309c6ffbbd7d1b9c0"
+export const WebRPCSchemaHash = "bd572b349e330d81cc30b1ff3cf69d7ab59f1619"
 
 //
 // Types
diff --git a/_examples/node-ts/webapp/client.gen.ts b/_examples/node-ts/webapp/client.gen.ts
index 77c1b30..fb9bb63 100644
--- a/_examples/node-ts/webapp/client.gen.ts
+++ b/_examples/node-ts/webapp/client.gen.ts
@@ -1,7 +1,7 @@
 /* eslint-disable */
-// node-ts v1.0.0 2167bb6fb0a186ff099cd8a309c6ffbbd7d1b9c0
+// node-ts v1.0.0 bd572b349e330d81cc30b1ff3cf69d7ab59f1619
 // --
-// Code generated by webrpc-gen@v0.14.0 with ../../ generator. DO NOT EDIT.
+// Code generated by webrpc-gen@v0.19.3 with ../../ generator. DO NOT EDIT.
 //
 // webrpc-gen -schema=service.ridl -target=../../ -client -out=./webapp/client.gen.ts
 
@@ -12,7 +12,7 @@ export const WebRPCVersion = "v1"
 export const WebRPCSchemaVersion = "v1.0.0"
 
 // Schema hash generated from your RIDL schema
-export const WebRPCSchemaHash = "2167bb6fb0a186ff099cd8a309c6ffbbd7d1b9c0"
+export const WebRPCSchemaHash = "bd572b349e330d81cc30b1ff3cf69d7ab59f1619"
 
 //
 // Types
diff --git a/_examples/sse/webapp/client.gen.ts b/_examples/sse/webapp/client.gen.ts
index 8d13eae..906af35 100644
--- a/_examples/sse/webapp/client.gen.ts
+++ b/_examples/sse/webapp/client.gen.ts
@@ -1,7 +1,7 @@
 /* eslint-disable */
-// webrpc-sse-chat v1.0.0 f3307fcc3621aa9099b8fa02f8bb22dee4263705
+// webrpc-sse-chat v1.0.0 e64bf9372e2faa45da9d449e8ea108dc0597a98d
 // --
-// Code generated by webrpc-gen@v0.14.0 with ../../ generator. DO NOT EDIT.
+// Code generated by webrpc-gen@v0.19.3 with ../../ generator. DO NOT EDIT.
 //
 // webrpc-gen -schema=service.ridl -target=../../ -client -out=./webapp/client.gen.ts
 
@@ -12,7 +12,7 @@ export const WebRPCVersion = "v1"
 export const WebRPCSchemaVersion = "v1.0.0"
 
 // Schema hash generated from your RIDL schema
-export const WebRPCSchemaHash = "f3307fcc3621aa9099b8fa02f8bb22dee4263705"
+export const WebRPCSchemaHash = "e64bf9372e2faa45da9d449e8ea108dc0597a98d"
 
 //
 // Types
@@ -139,103 +139,94 @@ const sseResponse = async (
     let buffer = "";
     let lastReadTime = Date.now();
     const timeout = (10 + 1) * 1000;
-    let intervalId: any;
+    let timeoutError = false
+    const intervalId = setInterval(() => {
+        if (Date.now() - lastReadTime > timeout) {
+          timeoutError = true
+          clearInterval(intervalId)
+          reader.releaseLock()
+        }
+    }, timeout);
 
-    try {
-        intervalId = setInterval(() => {
-            if (Date.now() - lastReadTime > timeout) {
-                throw WebrpcStreamLostError.new({cause: "Stream timed out"});
+    while (true) {
+        let value;
+        let done;
+        try {
+            ({value, done} = await reader.read());
+            if (timeoutError) throw new Error("Timeout, no data or heartbeat received")
+            lastReadTime = Date.now();
+            buffer += decoder.decode(value, {stream: true});
+        } catch (error) {
+            let message = "";
+            if (error instanceof Error) {
+                message = error.message;
             }
-        }, timeout);
 
-        while (true) {
-            let value;
-            let done;
-            try {
-                ({value, done} = await reader.read());
-                lastReadTime = Date.now();
-                buffer += decoder.decode(value, {stream: true});
-            } catch (error) {
-                let message = "";
-                if (error instanceof Error) {
-                    message = error.message;
-                }
-
-                if (error instanceof DOMException && error.name === "AbortError") {
-                    onError(
-                        WebrpcRequestFailedError.new({
-                            message: "AbortError",
-                            cause: `AbortError: ${message}`,
-                        }),
-                        () => {
-                            throw new Error("Abort signal cannot be used to reconnect");
-                        }
-                    );
-                } else {
-                    onError(
-                        WebrpcStreamLostError.new({
-                            cause: `reader.read(): ${message}`,
-                        }),
-                        retryFetch
-                    );
-                }
-                return;
+            if (error instanceof DOMException && error.name === "AbortError") {
+                onError(
+                    WebrpcRequestFailedError.new({
+                        message: "AbortError",
+                        cause: `AbortError: ${message}`,
+                    }),
+                    () => {
+                        throw new Error("Abort signal cannot be used to reconnect");
+                    }
+                );
+            } else {
+                onError(
+                    WebrpcStreamLostError.new({
+                        cause: `reader.read(): ${message}`,
+                    }),
+                    retryFetch
+                );
             }
+            return;
+        }
 
-            let lines = buffer.split("\n");
-            for (let i = 0; i < lines.length - 1; i++) {
-                if (lines[i].length == 0) {
-                    continue;
-                }
-                let data: any;
-                try {
-                    data = JSON.parse(lines[i]);
-                    if (data.hasOwnProperty("webrpcError")) {
-                        const error = data.webrpcError;
-                        const code: number =
-                            typeof error.code === "number" ? error.code : 0;
-                        onError(
-                            (webrpcErrorByCode[code] || WebrpcError).new(error),
-                            retryFetch
-                        );
-                        return;
-                    }
-                } catch (error) {
-                    if (
-                        error instanceof Error &&
-                        error.message === "Abort signal cannot be used to reconnect"
-                    ) {
-                        throw error;
-                    }
+        let lines = buffer.split("\n");
+        for (let i = 0; i < lines.length - 1; i++) {
+            if (lines[i].length == 0) {
+                continue;
+            }
+            let data: any;
+            try {
+                data = JSON.parse(lines[i]);
+                if (data.hasOwnProperty("webrpcError")) {
+                    const error = data.webrpcError;
+                    const code: number =
+                        typeof error.code === "number" ? error.code : 0;
                     onError(
-                        WebrpcBadResponseError.new({
-                            status: res.status,
-                            // @ts-ignore
-                            cause: `JSON.parse(): ${error.message}`,
-                        }),
+                        (webrpcErrorByCode[code] || WebrpcError).new(error),
                         retryFetch
                     );
+                    return;
                 }
-                onMessage(data);
-            }
-
-            if (!done) {
-                buffer = lines[lines.length - 1];
-                continue;
+            } catch (error) {
+                if (
+                    error instanceof Error &&
+                    error.message === "Abort signal cannot be used to reconnect"
+                ) {
+                    throw error;
+                }
+                onError(
+                    WebrpcBadResponseError.new({
+                        status: res.status,
+                        // @ts-ignore
+                        cause: `JSON.parse(): ${error.message}`,
+                    }),
+                    retryFetch
+                );
             }
-
-            onClose && onClose();
-            return;
+            onMessage(data);
         }
-    } catch (error) {
-        // @ts-ignore
-        if (error instanceof WebrpcStreamLostError) {
-            onError(error, retryFetch);
-        } else {
-            throw error;
+
+        if (!done) {
+            buffer = lines[lines.length - 1];
+            continue;
         }
-    } finally {
-        clearInterval(intervalId);
+
+        onClose && onClose();
+        return;
     }
 };
 
diff --git a/clientSSE.go.tmpl b/clientSSE.go.tmpl
index f20d494..015af8f 100644
--- a/clientSSE.go.tmpl
+++ b/clientSSE.go.tmpl
@@ -34,103 +34,94 @@ const sseResponse = async (
     let buffer = "";
     let lastReadTime = Date.now();
     const timeout = (10 + 1) * 1000;
-    let intervalId: any;
+    let timeoutError = false
+    const intervalId = setInterval(() => {
+        if (Date.now() - lastReadTime > timeout) {
+          timeoutError = true
+          clearInterval(intervalId)
+          reader.releaseLock()
+        }
+    }, timeout);
 
-    try {
-        intervalId = setInterval(() => {
-            if (Date.now() - lastReadTime > timeout) {
-                throw WebrpcStreamLostError.new({cause: "Stream timed out"});
+    while (true) {
+        let value;
+        let done;
+        try {
+            ({value, done} = await reader.read());
+            if (timeoutError) throw new Error("Timeout, no data or heartbeat received")
+            lastReadTime = Date.now();
+            buffer += decoder.decode(value, {stream: true});
+        } catch (error) {
+            let message = "";
+            if (error instanceof Error) {
+                message = error.message;
             }
-        }, timeout);
 
-        while (true) {
-            let value;
-            let done;
-            try {
-                ({value, done} = await reader.read());
-                lastReadTime = Date.now();
-                buffer += decoder.decode(value, {stream: true});
-            } catch (error) {
-                let message = "";
-                if (error instanceof Error) {
-                    message = error.message;
-                }
-
-                if (error instanceof DOMException && error.name === "AbortError") {
-                    onError(
-                        WebrpcRequestFailedError.new({
-                            message: "AbortError",
-                            cause: `AbortError: ${message}`,
-                        }),
-                        () => {
-                            throw new Error("Abort signal cannot be used to reconnect");
-                        }
-                    );
-                } else {
-                    onError(
-                        WebrpcStreamLostError.new({
-                            cause: `reader.read(): ${message}`,
-                        }),
-                        retryFetch
-                    );
-                }
-                return;
+            if (error instanceof DOMException && error.name === "AbortError") {
+                onError(
+                    WebrpcRequestFailedError.new({
+                        message: "AbortError",
+                        cause: `AbortError: ${message}`,
+                    }),
+                    () => {
+                        throw new Error("Abort signal cannot be used to reconnect");
+                    }
+                );
+            } else {
+                onError(
+                    WebrpcStreamLostError.new({
+                        cause: `reader.read(): ${message}`,
+                    }),
+                    retryFetch
+                );
             }
+            return;
+        }
 
-            let lines = buffer.split("\n");
-            for (let i = 0; i < lines.length - 1; i++) {
-                if (lines[i].length == 0) {
-                    continue;
-                }
-                let data: any;
-                try {
-                    data = JSON.parse(lines[i]);
-                    if (data.hasOwnProperty("webrpcError")) {
-                        const error = data.webrpcError;
-                        const code: number =
-                            typeof error.code === "number" ? error.code : 0;
-                        onError(
-                            (webrpcErrorByCode[code] || WebrpcError).new(error),
-                            retryFetch
-                        );
-                        return;
-                    }
-                } catch (error) {
-                    if (
-                        error instanceof Error &&
-                        error.message === "Abort signal cannot be used to reconnect"
-                    ) {
-                        throw error;
-                    }
+        let lines = buffer.split("\n");
+        for (let i = 0; i < lines.length - 1; i++) {
+            if (lines[i].length == 0) {
+                continue;
+            }
+            let data: any;
+            try {
+                data = JSON.parse(lines[i]);
+                if (data.hasOwnProperty("webrpcError")) {
+                    const error = data.webrpcError;
+                    const code: number =
+                        typeof error.code === "number" ? error.code : 0;
                     onError(
-                        WebrpcBadResponseError.new({
-                            status: res.status,
-                            // @ts-ignore
-                            cause: `JSON.parse(): ${error.message}`,
-                        }),
+                        (webrpcErrorByCode[code] || WebrpcError).new(error),
                         retryFetch
                     );
+                    return;
                 }
-                onMessage(data);
-            }
-
-            if (!done) {
-                buffer = lines[lines.length - 1];
-                continue;
+            } catch (error) {
+                if (
+                    error instanceof Error &&
+                    error.message === "Abort signal cannot be used to reconnect"
+                ) {
+                    throw error;
+                }
+                onError(
+                    WebrpcBadResponseError.new({
+                        status: res.status,
+                        // @ts-ignore
+                        cause: `JSON.parse(): ${error.message}`,
+                    }),
+                    retryFetch
+                );
             }
-
-            onClose && onClose();
-            return;
+            onMessage(data);
         }
-    } catch (error) {
-        // @ts-ignore
-        if (error instanceof WebrpcStreamLostError) {
-            onError(error, retryFetch);
-        } else {
-            throw error;
+
+        if (!done) {
+            buffer = lines[lines.length - 1];
+            continue;
         }
-    } finally {
-        clearInterval(intervalId);
+
+        onClose && onClose();
+        return;
     }
 };
 {{ end }}