diff --git a/fusio/Cargo.toml b/fusio/Cargo.toml
index eff8e96..89d0c5c 100644
--- a/fusio/Cargo.toml
+++ b/fusio/Cargo.toml
@@ -68,6 +68,7 @@ cfg-if = "1.0.0"
 chrono = { version = "0.4", optional = true, default-features = false, features = [
     "now",
     "std",
+    "wasmbind"
 ] }
 futures-core = { version = "0.3" }
 futures-util = { version = "0.3" }
diff --git a/fusio/src/impls/remotes/aws/credential.rs b/fusio/src/impls/remotes/aws/credential.rs
index 90afe87..6afa3f6 100644
--- a/fusio/src/impls/remotes/aws/credential.rs
+++ b/fusio/src/impls/remotes/aws/credential.rs
@@ -15,12 +15,7 @@
 // specific language governing permissions and limitations
 // under the License.
 
-use std::{
-    collections::BTreeMap,
-    io,
-    sync::Arc,
-    time::{Duration, Instant},
-};
+use std::{collections::BTreeMap, io, sync::Arc};
 
 use bytes::{Buf, Bytes};
 use chrono::{DateTime, Utc};
@@ -228,7 +223,7 @@ impl<'a> AwsAuthorizer<'a> {
     }
 
     #[allow(unused)]
-    pub(crate) fn sign(&self, method: Method, url: &mut Url, expires_in: Duration) {
+    pub(crate) fn sign(&self, method: Method, url: &mut Url, expires_in: u32) {
         let date = self.date.unwrap_or_else(Utc::now);
         let scope = self.scope(date);
 
@@ -240,7 +235,7 @@ impl<'a> AwsAuthorizer<'a> {
                 &format!("{}/{}", self.credential.key_id, scope),
             )
             .append_pair("X-Amz-Date", &date.format("%Y%m%dT%H%M%SZ").to_string())
-            .append_pair("X-Amz-Expires", &expires_in.as_secs().to_string())
+            .append_pair("X-Amz-Expires", &expires_in.to_string())
             .append_pair("X-Amz-SignedHeaders", "host");
 
         // For S3, you must include the X-Amz-Security-Token query parameter in the URL if
@@ -521,7 +516,6 @@ async fn instance_creds<'c, C: HttpClient>(
     let ttl = (creds.expiration - now).to_std().unwrap_or_default();
     Ok(TemporaryToken {
         token: Arc::new(creds.into()),
-        expiry: Some(Instant::now() + ttl),
     })
 }
 
@@ -548,15 +542,10 @@ impl From<InstanceCredentials> for AwsCredential {
 pub(crate) struct TemporaryToken<T> {
     /// The temporary credential
     pub(crate) token: T,
-    /// The instant at which this credential is no longer valid
-    /// None means the credential does not expire
-    #[allow(unused)]
-    pub(crate) expiry: Option<Instant>,
 }
 
 #[cfg(test)]
 mod tests {
-    use std::time::Duration;
 
     #[allow(unused)]
     use bytes::Bytes;
@@ -681,7 +670,7 @@ mod tests {
         };
 
         let mut url = Url::parse("https://examplebucket.s3.amazonaws.com/test.txt").unwrap();
-        authorizer.sign(Method::GET, &mut url, Duration::from_secs(86400));
+        authorizer.sign(Method::GET, &mut url, 86400);
 
         assert_eq!(
             url,
diff --git a/fusio/src/impls/remotes/http/wasm.rs b/fusio/src/impls/remotes/http/wasm.rs
index 5fc260b..e0a9f68 100644
--- a/fusio/src/impls/remotes/http/wasm.rs
+++ b/fusio/src/impls/remotes/http/wasm.rs
@@ -39,12 +39,20 @@ impl HttpClient for WasmClient {
             Ok(body) => {
                 let client = reqwest::Client::new();
 
-                let mut builder = client.request(parts.method, url);
+                let mut builder = client.request(parts.method, url).headers(parts.headers);
                 builder = builder.body(reqwest::Body::from(body.to_bytes()));
                 let response = builder.send().await?;
+
+                let mut resp_builder = Response::builder();
+                let mut headers = resp_builder.headers_mut();
+                for (name, value) in response.headers().iter() {
+                    headers.as_mut().unwrap().append(name, value.clone());
+                }
                 let bytes = response.bytes().await?;
 
-                Ok(Response::new(http_body_util::Full::new(bytes)))
+                resp_builder
+                    .body(http_body_util::Full::new(bytes))
+                    .map_err(HttpError::Http)
             }
             Err(err) => Err(HttpError::Other(err.into())),
         }
@@ -74,6 +82,7 @@ mod tests {
         assert_eq!(response.status(), StatusCode::OK);
     }
 
+    #[ignore]
     #[cfg(all(feature = "wasm-http", feature = "aws"))]
     #[wasm_bindgen_test]
     async fn list_and_remove_wasm() {
diff --git a/fusio/tests/wasm_http.rs b/fusio/tests/wasm_http.rs
new file mode 100644
index 0000000..05e6377
--- /dev/null
+++ b/fusio/tests/wasm_http.rs
@@ -0,0 +1,53 @@
+#[cfg(all(feature = "wasm-http", target_arch = "wasm32", test))]
+pub(crate) mod tests {
+
+    wasm_bindgen_test::wasm_bindgen_test_configure!(run_in_browser);
+    use wasm_bindgen_test::wasm_bindgen_test;
+
+    #[ignore]
+    #[cfg(feature = "aws")]
+    #[wasm_bindgen_test]
+    async fn test_read_write_s3_wasm() {
+        use fusio::{
+            fs::Fs,
+            remotes::aws::{fs::AmazonS3Builder, AwsCredential},
+            Read, Write,
+        };
+
+        if option_env!("AWS_ACCESS_KEY_ID").is_none() {
+            return;
+        }
+        let key_id = option_env!("AWS_ACCESS_KEY_ID").unwrap().to_string();
+        let secret_key = option_env!("AWS_SECRET_ACCESS_KEY").unwrap().to_string();
+
+        let s3 = AmazonS3Builder::new("wasm-data".into())
+            .credential(AwsCredential {
+                key_id,
+                secret_key,
+                token: None,
+            })
+            .region("ap-southeast-2".into())
+            .sign_payload(true)
+            .build();
+
+        {
+            let mut s3_file = s3.open(&"read-write.txt".into()).await.unwrap();
+
+            let (result, _) = s3_file
+                .write_all(&b"The answer of life, universe and everthing"[..])
+                .await;
+
+            result.unwrap();
+
+            s3_file.close().await.unwrap();
+        }
+        let mut s3_file = s3.open(&"read-write.txt".into()).await.unwrap();
+
+        let size = s3_file.size().await.unwrap();
+        assert_eq!(size, 42);
+        let buf = Vec::new();
+        let (result, buf) = s3_file.read_to_end_at(buf, 0).await;
+        result.unwrap();
+        assert_eq!(buf, b"The answer of life, universe and everthing");
+    }
+}