Make sure next export doesn't break other modes.

lib/page-loader.js

@@ -105,5 +105,10 @@ export default class PageLoader {
     route = this.normalizeRoute(route)
     delete this.pageCache[route]
     delete this.loadingRoutes[route]
+
+    const script = document.getElementById(`__NEXT_PAGE__${route}`)
+    if (script) {
+      script.parentNode.removeChild(script)
+    }
   }
 }

server/index.js

@@ -123,7 +123,7 @@ export default class Server {
         await this.serveStatic(req, res, p)
       },
 
-      '/_next/:buildId/page/_error': async (req, res, params) => {
+      '/_next/:buildId/page/_error*': async (req, res, params) => {
         if (!this.handleBuildId(params.buildId, res)) {
           const error = new Error('INVALID_BUILD_ID')
           const customFields = { buildIdMismatched: true }

test/unit/router.test.js

@@ -20,6 +20,7 @@ describe('Router', () => {
   const request = { clone: () => null }
   describe('.prefetch()', () => {
     it('should prefetch a given page', async () => {
+      global.__NEXT_DATA__ = {}
       const pageLoader = new PageLoader()
       const router = new Router('/', {}, '/', { pageLoader })
       const route = '/routex'
@@ -29,6 +30,7 @@ describe('Router', () => {
     })
 
     it('should only run two jobs at a time', async () => {
+      global.__NEXT_DATA__ = {}
       // delay loading pages for an hour
       const pageLoader = new PageLoader({ delay: 1000 * 3600 })
       const router = new Router('/', {}, '/', { pageLoader })
@@ -46,6 +48,7 @@ describe('Router', () => {
     })
 
     it('should run all the jobs', async () => {
+      global.__NEXT_DATA__ = {}
       const pageLoader = new PageLoader()
       const router = new Router('/', {}, '/', { pageLoader })
       const routes = ['route1', 'route2', 'route3', 'route4']