fix(@angular/cli): prefix historyApiFallback.index with deployUrl

when implementing i18n following https://angular.io/docs/ts/latest/cookbook/i18n.html and https://medium.com/@feloy/deploying-an-i18n-angular-app-with-angular-cli-fc788f17e358 when running in `development` to be consistent with `production` I am using ``` ng serve --deploy-url /en/ --base-href /en/ \ --aot --locale en --i18n-file ./src/locale/messages.en.xlf ``` running the app this way, on routes other than `http://localhost:4200/en/` the `webpack-dev-server` was always saying that the route is not found, so this commit fixes that

Author: smoke

packages/@angular/cli/tasks/serve.ts

@@ -177,6 +177,8 @@ export default Task.extend({
  // set publicPath property to be sent on webpack server config
  if (serveTaskOptions.deployUrl) {
  webpackDevServerConfiguration.publicPath = serveTaskOptions.deployUrl;
+ (webpackDevServerConfiguration.historyApiFallback as any).index =
+ serveTaskOptions.deployUrl + `/${appConfig.index}`;
  }
 
  if (serveTaskOptions.target === 'production') {

tests/e2e/tests/misc/deploy-url.ts

@@ -1,14 +1,18 @@
 import { killAllProcesses } from '../../utils/process';
 import { request } from '../../utils/http';
-import { expectToFail } from '../../utils/utils';
 import { ngServe } from '../../utils/project';
 
 export default function () {
  return Promise.resolve()
  // check when setup through command line arguments
- .then(() => ngServe('--deploy-url', '/deployurl', '--base-href', '/deployurl'))
- .then(() => expectToFail(() => request('http://localhost:4200')))
- .then(() => request('http://localhost:4200/deployurl'))
+ .then(() => ngServe('--deploy-url', '/deployurl/', '--base-href', '/deployurl/'))
+ .then(() => request('http://localhost:4200'))
+ .then(body => {
+ if (!body.match(/<app-root><\/app-root>/)) {
+ throw new Error('Response does not match expected value.');
+ }
+ })
+ .then(() => request('http://localhost:4200/deployurl/'))
  .then(body => {
  if (!body.match(/<app-root><\/app-root>/)) {
  throw new Error('Response does not match expected value.');