Question

I’m trying to make a chrome extension on my toolbar that, when clicked, will turn the current page into the google cached version of that page. If I am already on a google Cache of a page, I want to open a little popup saying, “You’re already on the google cache version of this page!”

Here’s what I got:

manifest.json:

{
  "name": "gCache",
  "version": "1.1.5",
  "description": "View the Google Cache of a page",
  "background_page": "redirect.html",

  "browser_action": {
    "default_icon": "icon.png",
    "default_text": "Google Cache version of this page"
  },

  "permissions": [
    "tabs"
  ]
}

redirect.html:

<script>

chrome.browserAction.onClicked.addListener(function(tab) {
    if (tab.url.substring(0, 38) == "http://webcache.googleusercontent.com/")
        //Popup saying user is already on a webcache page
    else if(tab.url.substring(0, 5) == "http:")
        chrome.tabs.update(tab.id, { url: 'http://webcache.googleusercontent.com/search?q=cache:' + tab.url.substr(7) });
    else if(tab.url.substring(0,6) == "https:")
        chrome.tabs.update(tab.id, { url: 'http://webcache.googleusercontent.com/search?q=cache:' + tab.url.substr(8) });

});

</script>

Thank you for reading and for helping!

Answer 1

You can’t mix and match browserAction onClick events with opening a popup. You may want to use the Desktop Notifications API instead.