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Why doesn't Javascript work in the Google sample code for the new style of the Chrome extension settings pages?

I am trying to follow a code example for a newer style of creating parameter pages . I added the options.html and options.js file with the exact contents that they list on this page. I also added the options_ui section to my manifest.json (and removed the trailing comma after chrome_style: true ').

When I do this, I can open the options window for the extension, but the save and load functions do not work. I tried adding warnings to some console logs, and they don't seem to be executing either. I cannot find any errors or warnings anywhere, but I just cannot figure out how to execute JavaScript. Does anyone know what I need to do differently?

Edit: I am adding source files here to make it easier for people to scan through them and for posterity.

manifest.json

{
  "manifest_version": 2,

  "name": "My extension",
  "description": "test extension",
  "version": "1.0",
  "options_ui": {
    // Required.
    "page": "options.html",
    // Recommended.
    "chrome_style": true
    // Not recommended; only provided for backwards compatibility,
    // and will be unsupported in a future version of Chrome (TBD).
    //"open_in_tab": true
  }
}

options.html

<!DOCTYPE html>
<html>
<head>
  <title>My Test Extension Options</title>
  <style>
    body: { padding: 10px; }
  </style>
</head>

<body>
  Favorite color:
  <select id="color">
   <option value="red">red</option>
   <option value="green">green</option>
   <option value="blue">blue</option>
   <option value="yellow">yellow</option>
  </select>

  <label>
    <input type="checkbox" id="like">
    I like colors.
  </label>

  <div id="status"></div>
  <button id="save">Save</button>

  <script src="options.js"></script>
</body>
</html>

options.js

// Saves options to chrome.storage.sync.
function save_options() {
  var color = document.getElementById('color').value;
  var likesColor = document.getElementById('like').checked;
  chrome.storage.sync.set({
    favoriteColor: color,
    likesColor: likesColor
  }, function() {
    // Update status to let user know options were saved.
    var status = document.getElementById('status');
    status.textContent = 'Options saved.';
    setTimeout(function() {
      status.textContent = '';
    }, 750);
  });
}

// Restores select box and checkbox state using the preferences
// stored in chrome.storage.
function restore_options() {
  // Use default value color = 'red' and likesColor = true.
  chrome.storage.sync.get({
    favoriteColor: 'red',
    likesColor: true
  }, function(items) {
    document.getElementById('color').value = items.favoriteColor;
    document.getElementById('like').checked = items.likesColor;
  });
}
document.addEventListener('DOMContentLoaded', restore_options);
document.getElementById('save').addEventListener('click',
    save_options);
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1 answer

To use the API chrome.storage, you must declare permission storagein the manifest file.

, " " ( devtools) "", " " "undefined" .

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Source: https://habr.com/ru/post/1598522/

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