diff --git a/src/io/source_client.rs b/src/io/source_client.rs
index 3dae0b2a..bfaa5080 100644
--- a/src/io/source_client.rs
+++ b/src/io/source_client.rs
@@ -30,7 +30,7 @@ impl HttpSourceClient {
         Self {
             #[cfg(not(target_arch = "wasm32"))]
             inner_client: crate::platform::http_client::ReqwestHttpClient::new(Some(
-                "/tmp/mapr-cache".to_string(), // TODO make path  dynamic
+                "./mapr-cache".to_string(), // TODO make path  dynamic
             )),
             #[cfg(target_arch = "wasm32")]
             inner_client: crate::platform::http_client::WHATWGFetchHttpClient::new(),
diff --git a/src/platform/noweb/http_client.rs b/src/platform/noweb/http_client.rs
index 46acbc25..7a00fc6e 100644
--- a/src/platform/noweb/http_client.rs
+++ b/src/platform/noweb/http_client.rs
@@ -38,10 +38,16 @@ impl ReqwestHttpClient {
 
     pub async fn fetch(&self, url: &str) -> Result<Vec<u8>, Error> {
         let response = self.client.get(url).send().await?;
-        if response.status() != StatusCode::OK {
-            return Err(Error::Network("response code not 200".to_string()));
+        match response.error_for_status() {
+            Ok(response) => {
+                if response.status() == StatusCode::NOT_MODIFIED {
+                    log::info!("Using data from cache");
+                }
+
+                let body = response.bytes().await?;
+                Ok(Vec::from(body.as_ref()))
+            }
+            Err(e) => Err(Error::Network(e.to_string())),
         }
-        let body = response.bytes().await?;
-        Ok(Vec::from(body.as_ref()))
     }
 }