编辑1

Question

我正在尝试将div附加到当前活动标签页。但是我收到了这个错误：

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

我的代码：（show_loader.js）

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

但是当我把这段代码放在一边时：

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

按预期工作，当前标签的背景颜色发生了变化，除了show_loader.js文件中的代码之外没有其他任何变化，该文件是从popup.js运行的，如下所示：

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

My Manifest文件也有：

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

所以我想知道为什么当我尝试做除设置背景颜色以外的任何其他事情时它会产生上述错误。即使在该页面上单独使用简单的alert或console.log也会出现同样的错误。

如何解决这个问题？

更新：完成相关代码

清单：

{
   ... 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

Answer 1

有效的代码

的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"
        });
    }
});

的script.js

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

尝试从代码中删除已弃用的chrome.tabs.getSelected，然后使用chrome.tabs.query。

样本用法

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
    }
});

编辑1

如果您打算在当前窗口中捕获活动浏览选项卡，则单击browser action使用此代码

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(); 
    }
});

Answer 2

清单 v3 使用不同的 permission schema。这对我有用：

    "host_permissions": [
        "https://music.youtube.com/*"
    ],

扩展清单必须请求访问此主机的权限

更新：完成相关代码

2 个答案:

的manifest.json

popup.html

back.js

的script.js

样本用法

编辑1