title: Flutter web can't be running in localhost
body: <p>i've running flutter build web
  and then copy project web from directory &quot;build/web&quot; into &quot;xmapp/htdocs&quot;,
  but when open browser its only shown blank white screen and error in console.</p>
  <p>this is the screen</p>
  <p><a href="https://i.stack.imgur.com/Skavq.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Skavq.png" alt="enter image description here" /></a></p>
  <p>i realized i have to add my local ip into front of link in htdocs/web/flutter_service_worker.js, like this</p>
  <pre><code>const CORE = [
  &quot;/&quot;,
  &quot;main.dart.js&quot;,
  &quot;index.html&quot;,
  &quot;assets/NOTICES&quot;,
  &quot;assets/AssetManifest.json&quot;,
  &quot;assets/FontManifest.json&quot;];
  </code></pre>
  <p>be like this</p>
  <pre><code>const CORE = [
  &quot;http:192.168.1.9:81/web/&quot;,
  &quot;http:192.168.1.9:81/web/main.dart.js&quot;,
  &quot;http:192.168.1.9:81/web/index.html&quot;,
  &quot;http:192.168.1.9:81/web/assets/NOTICES&quot;,
  &quot;http:192.168.1.9:81/web/assets/AssetManifest.json&quot;,
  &quot;http:192.168.1.9:81/web/assets/FontManifest.json&quot;];
  </code></pre>
  <p>but nothing happend, whats wrong? please help</p>