Angular - bundle error on page reload with route parameter

Question

Angular 4

I'm getting the Uncaught SyntaxError: Unexpected token < error from my bundles, but only in a specific situation:

on live server only (nginx forwarding all traffic to express server, config below)
only when refreshing routes that end on a route param, e.g. chart/123, where 123 is a chart id and the path is chart/:id in the router. Something like /profile works fine as this isn't a param in a route.
edit - I also get this error for routes such as users/add and organisations/add, so it seems to error for any route with more than one 'part'...

The result is that all the *.bundle.js requests are returning the index.html file instead of their preferred *.js files.

Any ideas? Let me know if more context is needed.

Thanks in advance for any help.

Here is my server.js:

const express = require('express');
const compression = require('compression');
const morgan = require('morgan');
const path = require('path');
const rfs = require('rotating-file-stream');
const fs = require('fs');
const app = express();

/**
 * Logging
 */

 /**
 * Create a logs directory (in project root)
 */
const logDirectory = path.join(__dirname, './logs');
if (!fs.existsSync(logDirectory)) {
  fs.mkdirSync(logDirectory);
}
// Set up rotating file stream, rotate every day
const accessLogStream = rfs('access.log', {
  interval: '1d',
  path: logDirectory,
});
// winston.info(logDirectory);
app.use(morgan('short', { stream: accessLogStream }));

/**
 * /Logging
 */

app.use(compression());

const port = process.env.PORT || 8082;

app.disable('x-powered-by');

app.use(express.static(__dirname + '/dist'));

app.get('*', (req,res) => {
  try {
    res.sendFile(`${__dirname}/dist/index.html`);
  } catch (e) {
    res.status(404).send('index not found');
  }
});


app.listen(port,'127.0.0.1');
console.log(`listening on 127.0.0.1:${port}`);

Here is my angular-cli.json (pretty much boilerplate):

{
  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
  "project": {
    "name": "new-client"
  },
  "apps": [
    {
      "root": "src",
      "outDir": "dist",
      "assets": [
        "assets",
        "favicon.ico"
      ],
      "index": "index.html",
      "main": "main.ts",
      "polyfills": "polyfills.ts",
      "test": "test.ts",
      "tsconfig": "tsconfig.app.json",
      "testTsconfig": "tsconfig.spec.json",
      "prefix": "app",
      "styles": [
        "assets/scss/main.scss"
      ],
      "scripts": [
        "../node_modules/chart.js/dist/Chart.min.js",
         "../node_modules/moment/min/moment.min.js"
      ],
      "environmentSource": "environments/environment.ts",
      "environments": {
        "dev": "environments/environment.ts",
        "livedata": "environments/environment.livedata.ts",
        "production": "environments/environment.prod.ts"
      }
    }
  ],
  "e2e": {
    "protractor": {
      "config": "./protractor.conf.js"
    }
  },
  "lint": [
    {
      "project": "src/tsconfig.app.json"
    },
    {
      "project": "src/tsconfig.spec.json"
    },
    {
      "project": "e2e/tsconfig.e2e.json"
    }
  ],
  "test": {
    "karma": {
      "config": "./karma.conf.js"
    }
  },
  "defaults": {
    "styleExt": "scss",
    "component": {
    }
  }
}

dafyddPrys dafyddPrys · Accepted Answer · 2017-09-21T10:09:24

So for me, the issue was conflicting base-href options.

In my index.html, I have the standard <base href="/"> option.

Then, in my build step, I had this:

ng build --environment=production --base-href . --aot

note the --base-href . - this seems to have been overriding the / option in the index.html. I solved by removing --base-href from my build script. I could have also set it to ./dist to remove the conflict I think.

From the angular-cli docs for build, this setting overrides any option in your index/html.

Angular - bundle error on page reload with route parameter

1 Answers