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javascriptgoogle-chromegoogle-chrome-extension

Extension manifest must request permission to access this host

I am trying to append a div to page of current active tab. However I am getting this error:

Error during tabs.executeScript: Cannot access contents of url .... 
Extension manifest must request permission to access this host.

My Code: (show_loader.js)

var dv = document.createElement('div');
dv.id = 'myid';
dv.innerHTML = 'test';
document.body.appendChild(dv);

However when I put this code:

document.body.style.backgroundColor = 'green';

It works as expected and background color of current tab is changed with no other change except for the code in show_loader.js file which is run from popup.js like this:

chrome.tabs.executeScript(null, {file: "show_loader.js"});

My Manifest file also does have:

"permissions":
[
  "tabs",
  "notifications",
  "http://*/",
  "https://*/"
],

So I wonder why it gives above error when I try to do anything else other than setting background color. Even simple alert or console.log alone on that page gives same above mentioned error.

How to fix that ?

Update: Complete Relevant Code

Manifest:

{
   ... name and description ...
   "icons":
   {
      "16" : "img/icon.png",
      "48" : "img/48.png",
      "128" : "img/128.png"
   },
   
   "permissions":
   [
      "tabs",
      "notifications",
      "http://*/*",
      "https://*/*"
   ],
   
   "browser_action":
   {
      "default_icon": "img/icon.png", 
      "default_title": "Page title",      
      "default_popup": "popup.html"       
   }
}

popup.js

// send data to server for saving
$('#btn').click(function(){

     chrome.tabs.executeScript(null, {file: "show_loader.js"});

      $loader.show();

      var data = $(this).closest('form').serialize();

      $.ajax({.....});

});

window.onload = function(){
    var $loader = $('#loader');
    $loader.show();
    
    chrome.tabs.getSelected(null, function(tab) {
        //console.log(tab);
        $('#url').val(tab.url); 
        $('#title').val(tab.title);
        $loader.hide();
    });
};

popup.html

<html>
<head>
   <link rel="stylesheet" href="css/style.css" type="text/css" />
</head>
<body>
    
   <form action="" method="post" name="frm" id="frm">
   <table border="0" cellpadding="3" cellspecing="0" width="370">
      ......
   </table>
   </form>

<script src='js/jquery.js'></script>
<script src='popup.js?v=014423432423'></script> 

</body>
</html>

show_loader.js

console.log($); // doesn't work

// document.body.style.backgroundColor = 'green'; // WORKS
Solution

  • Code which worked

    manifest.json

    {
    "name": "Manifest Permissions",
    "description": "http://stackoverflow.com/questions/14361061/extension-manifest-must-request-permission-to-access-this-host",
    "version": "1",
    "manifest_version": 2,
    "browser_action": {
        "default_popup": "popup.html"
    },
    "permissions": [
        "tabs",
        "notifications",
        "http://*/",
        "https://*/"
    ]
}

    popup.html

    <html>

    <head>
        <script src="back.js"></script>
    </head>

    <body>
        <button id="tmp-clipboard">Click Me</button>
    </body>

</html>

    back.js

    document.addEventListener("DOMContentLoaded", function () {
    document.getElementById('tmp-clipboard').onclick = function () {
        chrome.tabs.executeScript(null, {
            file: "script.js"
        });
    }
});

    script.js

    var dv = document.createElement('div');
dv.id = 'myid';
dv.innerHTML = 'test';
document.body.appendChild(dv);

    Try Eliminating deprecated chrome.tabs.getSelected from your code and use chrome.tabs.query instead.

    Sample Usage

    chrome.tabs.query({
    "currentWindow": true,
    "status": true,
    "active": true //Add any parameters you want
}, function (tabs) {//It returns an array
    for (tab in tabs) {
        //Do your stuff here
    }
});

    Edit 1

    If you intention is to capture active browsing tab in current window where he clicked browser action use this code

    chrome.tabs.query({
    "currentWindow": true,//Filters tabs in current window
    "status": "complete", //The Page is completely loaded
    "active": true // The tab or web page is browsed at this state,
    "windowType": "normal" // Filters normal web pages, eliminates g-talk notifications etc
}, function (tabs) {//It returns an array
    for (tab in tabs) {
        $('#url').val(tabs[tab].url); 
        $('#title').val(tabs[tab].title);
        $loader.hide(); 
    }
});