diff --git a/tracker/tracker/package.json b/tracker/tracker/package.json
index 785d9648c..a1657e88a 100644
--- a/tracker/tracker/package.json
+++ b/tracker/tracker/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@openreplay/tracker",
   "description": "The OpenReplay tracker main package",
-  "version": "9.0.12",
+  "version": "9.0.13",
   "keywords": [
     "logging",
     "replay"
diff --git a/tracker/tracker/src/main/modules/Network/fetchProxy.ts b/tracker/tracker/src/main/modules/Network/fetchProxy.ts
index e16e62277..87b111467 100644
--- a/tracker/tracker/src/main/modules/Network/fetchProxy.ts
+++ b/tracker/tracker/src/main/modules/Network/fetchProxy.ts
@@ -131,6 +131,7 @@ export class FetchProxyHandler<T extends typeof fetch> implements ProxyHandler<T
   public apply(target: T, _: typeof window, argsList: [RequestInfo | URL, RequestInit]) {
     const input = argsList[0]
     const init = argsList[1]
+    if (!input) return target.apply(window, argsList)
 
     const isORUrl =
       input instanceof URL || typeof input === 'string'
@@ -177,7 +178,7 @@ export class FetchProxyHandler<T extends typeof fetch> implements ProxyHandler<T
       })
   }
 
-  protected beforeFetch(item: NetworkMessage, input: RequestInfo, init?: RequestInit) {
+  protected beforeFetch(item: NetworkMessage, input: RequestInfo | string, init?: RequestInit) {
     let url: URL,
       method = 'GET',
       requestHeader: HeadersInit = {}