diff --git a/src/index.js b/src/index.js
index ad88a26..d84d887 100644
--- a/src/index.js
+++ b/src/index.js
@@ -135,6 +135,7 @@ class FetchMock {
       obj = {
         status: 200,
         data: obj,
+        ok: true
       };
     }
 
diff --git a/src/response.js b/src/response.js
index 85123b1..cc5e8fc 100644
--- a/src/response.js
+++ b/src/response.js
@@ -22,6 +22,14 @@ class Response {
     return this[_statusText];
   }
 
+  get ok() {
+    if (this[_status] >= 200 && this[_status] < 300) {
+      return true;
+    } else {
+      return false;
+    }
+  }
+
   text() {
     try {
       return Promise.resolve(JSON.stringify(this[_data]));