diff --git a/lib/router/router.js b/lib/router/router.js
index 74706f78..30f7ab5f 100644
--- a/lib/router/router.js
+++ b/lib/router/router.js
@@ -279,12 +279,16 @@ export default class Router extends EventEmitter {
     return props
   }
 
-  fetchRoute (route) {
+  async fetchRoute (route) {
     let promise = this.fetchingRoutes[route]
     if (!promise) {
       promise = this.fetchingRoutes[route] = this.doFetchRoute(route)
     }
-    return promise
+
+    const res = await promise
+    // We need to clone this to prevent reading the body twice
+    // Becuase it's possible only once to read res.json() or a similar method.
+    return res.clone()
   }
 
   doFetchRoute (route) {
diff --git a/test/unit/router.test.js b/test/unit/router.test.js
index 4d53b6a5..9a76ed04 100644
--- a/test/unit/router.test.js
+++ b/test/unit/router.test.js
@@ -2,10 +2,11 @@
 import Router from '../../dist/lib/router/router'
 
 describe('Router', () => {
+  const request = { clone: () => null }
   describe('.prefetch()', () => {
     it('should prefetch a given page', async () => {
       const router = new Router('/', {})
-      const promise = Promise.resolve()
+      const promise = Promise.resolve(request)
       const route = 'routex'
       router.doFetchRoute = (r) => {
         expect(r).toBe(route)
@@ -19,7 +20,7 @@ describe('Router', () => {
     it('should stop if it\'s prefetching already', async () => {
       const router = new Router('/', {})
       const route = 'routex'
-      router.fetchingRoutes[route] = Promise.resolve()
+      router.fetchingRoutes[route] = Promise.resolve(request)
       router.doFetchRoute = () => { throw new Error('Should not happen') }
       await router.prefetch(route)
     })
@@ -48,7 +49,7 @@ describe('Router', () => {
       const router = new Router('/', {})
       const routes = ['route1', 'route2', 'route3', 'route4']
 
-      router.doFetchRoute = () => Promise.resolve()
+      router.doFetchRoute = () => Promise.resolve(request)
 
       await router.prefetch(routes[0])
       await router.prefetch(routes[1])