diff --git a/.changeset/polite-rockets-train.md b/.changeset/polite-rockets-train.md
new file mode 100644
index 000000000..6039a5411
--- /dev/null
+++ b/.changeset/polite-rockets-train.md
@@ -0,0 +1,5 @@
+---
+"@monokle/synchronizer": patch
+---
+
+Imporve origin config fetching by assuring response status and using https as default proto
diff --git a/packages/synchronizer/src/__tests__/fetcher.spec.ts b/packages/synchronizer/src/__tests__/fetcher.spec.ts
index cc3880937..c8267cd80 100644
--- a/packages/synchronizer/src/__tests__/fetcher.spec.ts
+++ b/packages/synchronizer/src/__tests__/fetcher.spec.ts
@@ -143,7 +143,7 @@ describe('Fetcher Tests', () => {
 
         const server = app.listen(13000, async () => {
           try {
-            const originData = await fetchOriginConfig('localhost:13000');
+            const originData = await fetchOriginConfig('http://localhost:13000');
 
             assert.equal(originData?.origin, 'http://localhost:13000');
             assert.equal(originData?.apiOrigin, 'https://api.monokle.local');
diff --git a/packages/synchronizer/src/handlers/configHandler.ts b/packages/synchronizer/src/handlers/configHandler.ts
index 0c74e80e8..4606239a5 100644
--- a/packages/synchronizer/src/handlers/configHandler.ts
+++ b/packages/synchronizer/src/handlers/configHandler.ts
@@ -26,8 +26,13 @@ export async function fetchOriginConfig(origin: string) {
   }
 
   try {
-    const configUrl = normalizeUrl(`${origin}/config.js`);
+    const configUrl = normalize(`${origin}/config.js`);
     const response = await fetch(configUrl);
+
+    if (!response.ok) {
+      throw new Error(`Failed to fetch config from ${configUrl} with status ${response.status}: ${response.statusText}`);
+    }
+
     const responseText = await response.text();
 
     const values = Array.from(responseText.matchAll(/([A-Z_]+)\s*:\s*"(.*?)"/gm)).reduce(
@@ -41,7 +46,7 @@ export async function fetchOriginConfig(origin: string) {
     );
 
     if (values) {
-      values.origin = normalizeUrl(origin);
+      values.origin = normalize(origin);
       values.apiOrigin = values.API_ORIGIN;
       values.authOrigin = values.OIDC_DISCOVERY_URL;
       values.schemasOrigin = values.SCHEMA_BASE_URL;
@@ -59,3 +64,10 @@ export async function fetchOriginConfig(origin: string) {
     throw error;
   }
 }
+
+function normalize(url: string) {
+  return normalizeUrl(url, {
+    defaultProtocol: 'https:',
+    normalizeProtocol: true,
+  });
+}