chrome.storage.sync 未定义错误

Question

I'm writing a simple extension and need to save user blacklisted keywords. I'm using the options_page for chrome to ask users for input, and save those words to the storage to be used later. However, when I press 'save', I get the error Uncaught TypeError: Cannot read property 'sync' of undefined , but I followed the instructions in the chrome extension documentation. I added "permissions": ["storage"] to the manifest.json file, and reloaded the extension and options page multiple times, yet I still get the same error. Here's my javascript code:

var save_options = function() {
  var blacklistWords = document.getElementById('word').value;
  chrome.storage.sync.set({'blacklistWords': blacklistWords}, function() {
    // Update status to let user know options were saved.
    alert("saved");
  });
};

document.getElementById('save').addEventListener('click', save_options);

I would really appreciate it if someone could help me figure this out.

Answer 1

Your application needs permissions to read/write sync storage.

"permissions": [
  "storage",
],

Answer 2

每当您更新manifest.json文件时，始终重新加载扩展。