diff --git a/packages/@uppy/utils/src/isNetworkError.test.ts b/packages/@uppy/utils/src/isNetworkError.test.ts
index bfe755d1a..a1a2e8868 100644
--- a/packages/@uppy/utils/src/isNetworkError.test.ts
+++ b/packages/@uppy/utils/src/isNetworkError.test.ts
@@ -9,12 +9,6 @@ describe('isNetworkError', () => {
       status: 0,
     } as any as XMLHttpRequest
 
-    const xhrNetworkError2Mock = {
-      readyState: 2,
-      responseText: '',
-      status: 300,
-    } as any as XMLHttpRequest
-
     const xhrRegularErrorMock = {
       readyState: 4,
       responseText: 'Failed',
@@ -27,9 +21,15 @@ describe('isNetworkError', () => {
       status: 200,
     } as any as XMLHttpRequest
 
+    const xhrIncompleteRequestMock = {
+      readyState: 2,
+      responseText: '',
+      status: 0,
+    } as any as XMLHttpRequest
+
     expect(isNetworkError(xhrNetworkErrorMock)).toEqual(true)
-    expect(isNetworkError(xhrNetworkError2Mock)).toEqual(true)
     expect(isNetworkError(xhrRegularErrorMock)).toEqual(false)
     expect(isNetworkError(xhrNetworkSuccessMock)).toEqual(false)
+    expect(isNetworkError(xhrIncompleteRequestMock)).toEqual(false)
   })
 })
diff --git a/packages/@uppy/utils/src/isNetworkError.ts b/packages/@uppy/utils/src/isNetworkError.ts
index bc806c203..9bce2e3fd 100644
--- a/packages/@uppy/utils/src/isNetworkError.ts
+++ b/packages/@uppy/utils/src/isNetworkError.ts
@@ -1,8 +1,7 @@
 function isNetworkError(xhr?: XMLHttpRequest): boolean {
-  if (!xhr) {
-    return false
-  }
-  return (xhr.readyState !== 0 && xhr.readyState !== 4) || xhr.status === 0
+  if (!xhr) return false
+  // finished but status is 0 — usually indicates a network/CORS/file error
+  return xhr.readyState === 4 && xhr.status === 0
 }
 
 export default isNetworkError