The `chrome.windows` API is not defined for this particular Chrome

I'm currently in the process of developing a Chrome extension that will allow users to effectively manage open tabs within a specific application's website. Here is the current manifest file:

{
    "manifest_version": 2,
    "name": "AT Tabs",
    "version": "0.1",
    "permissions": ["activeTab", "tabs"],
    "content_scripts": [{
        "matches": ["<all_urls>"],
        "js": ["main.js"]
    }]
}

However, I am encountering an issue when trying to execute the following code snippet in the main.js file:

console.log(chrome.windows);

The console is displaying 'undefined' as the output. Any suggestions on why this might be happening? Both 'tabs' and 'activeTab' permissions have been granted, and the extension is being run in developer mode.

javascriptgoogle-chromegoogle-chrome-extension

Answer №1

chrome.windows cannot be accessed directly in your main.js file because it is an injected content script.

The only way to access chrome.windows is through your background/event pages JavaScript. You will need to use message passing from your content script to your background script to perform window-related actions.

To create a window from a content script, your extension setup should include the following:

Manifest:

{
  ...
  "background": {
    "scripts": ["eventPage.js"],
    "persistent": false
  },
  ...
}

Main.js:

chrome.runtime.sendMessage({
    action: 'createWindow',
    url: 'http://google.com'
  },
  function(createdWindow) {
    console.log(createdWindow);
  });

EventPage.js:

chrome.runtime.onMessage.addListener(function(request, sender, sendResponse) {
  if (request && request.action === 'createWindow' && request.url) {
    chrome.windows.create({url: request.url}, function (win) {
      sendResponse(win);
    });
  }
});

 

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