diff --git a/es/createProdMockServer.js b/es/createProdMockServer.js
index 1cfdf62..98a4c9b 100644
--- a/es/createProdMockServer.js
+++ b/es/createProdMockServer.js
@@ -4,10 +4,27 @@ export function createProdMockServer(mockList) {
   Mock.XHR.prototype.__send = Mock.XHR.prototype.send;
   // @ts-ignore
   Mock.XHR.prototype.send = function () {
-    if (this.custom.xhr) this.custom.xhr.withCredentials = this.withCredentials || false;
+    if (this.custom.xhr) {
+      this.custom.xhr.withCredentials = this.withCredentials || false;
+      if (this.responseType) {
+        this.custom.xhr.responseType = this.responseType;
+      }
+    }
     // eslint-disable-next-line
     this.__send.apply(this, arguments);
   };
+  // @ts-ignore
+  Mock.XHR.prototype.proxy_open = Mock.XHR.prototype.open;
+  // @ts-ignore
+  Mock.XHR.prototype.open = function () {
+    let responseType = this.responseType;
+    this.proxy_open(...arguments);
+    if (this.custom.xhr) {
+      if (responseType) {
+        this.custom.xhr.responseType = responseType;
+      }
+    }
+  };
   for (const { url, method, response, timeout } of mockList) {
     __setupMock__(timeout);
     Mock.mock(new RegExp(url), method || 'get', __XHR2ExpressReqWrapper__(response, timeout));
diff --git a/package.json b/package.json
index 2938433..12293b7 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vite-plugin-mock",
-  "version": "2.4.1",
+  "version": "2.4.2",
   "description": "A mock plugin for vite",
   "main": "dist/index.js",
   "files": [
diff --git a/src/createProdMockServer.ts b/src/createProdMockServer.ts
index 812d586..f9db34d 100644
--- a/src/createProdMockServer.ts
+++ b/src/createProdMockServer.ts
@@ -1,3 +1,4 @@
+/* eslint-disable */
 import Mock from 'mockjs';
 
 export function createProdMockServer(mockList: any[]) {
@@ -5,11 +6,32 @@ export function createProdMockServer(mockList: any[]) {
   Mock.XHR.prototype.__send = Mock.XHR.prototype.send;
   // @ts-ignore
   Mock.XHR.prototype.send = function () {
-    if (this.custom.xhr) this.custom.xhr.withCredentials = this.withCredentials || false;
+    if (this.custom.xhr) {
+      this.custom.xhr.withCredentials = this.withCredentials || false;
+
+      if (this.responseType) {
+        this.custom.xhr.responseType = this.responseType;
+      }
+    }
     // eslint-disable-next-line
     this.__send.apply(this, arguments);
   };
 
+  // @ts-ignore
+  Mock.XHR.prototype.proxy_open = Mock.XHR.prototype.open;
+
+  // @ts-ignore
+  Mock.XHR.prototype.open = function () {
+    let responseType = this.responseType;
+    // @ts-ignore
+    this.proxy_open(...arguments);
+    if (this.custom.xhr) {
+      if (responseType) {
+        this.custom.xhr.responseType = responseType;
+      }
+    }
+  };
+
   for (const { url, method, response, timeout } of mockList) {
     __setupMock__(timeout);
     Mock.mock(new RegExp(url), method || 'get', __XHR2ExpressReqWrapper__(response, timeout));