将自定义用户代理关联到特定的 Google Chrome 页面/标签 [英] Associate a custom user agent to a specific Google Chrome page/tab

问题描述

我正在开发 Google Chrome 扩展程序，我想为标签/页面或弹出窗口(显示为气泡弹出窗口"的 iframe)设置特定的用户代理，而不影响其他页面或标签.

I'm developing a Google Chrome extension and I'd like to set up a specific user agent to a tab/page, or to a popup (iframe shown as a "bubble popup"), without affecting other pages or tabs.

有可能吗?

推荐答案

webRequestAPI 可用于修改用户代理标头.
注意:开发者工具中的网络标签显示旧标题.我已经使用 netcat (nc -l 127.0.0.1 -p 6789).

The webRequest API can be used to modify the User Agent header.
Note: The Network tab at the Developer tools show the old headers. I've verified that the headers are set correctly, using netcat (nc -l 127.0.0.1 -p 6789).

在下面的示例中，代码在所有标签上激活.调整请求过滤器以满足您的要求.添加 tabId 以限制此过滤器的功能，使用您的选项卡的 tabId(可通过各种 API 获得，chrome.tabs 特别是).

In the example below, the code activates on all tabs. Adjust the request filter to meet your requirements. Add tabId to limit the functionality to this filter, with the tabId of your tabs (obtainable through various APIs, chrome.tabs in particular).

chrome.webRequest.onBeforeSendHeaders.addListener(
    function(info) {
        // Replace the User-Agent header
        var headers = info.requestHeaders;
        headers.forEach(function(header, i) {
            if (header.name.toLowerCase() == 'user-agent') { 
                header.value = 'Spoofed UA';
            }
        });  
        return {requestHeaders: headers};
    },
    // Request filter
    {
        // Modify the headers for these pages
        urls: [
            "http://stackoverflow.com/*",
            "http://127.0.0.1:6789/*"
        ],
        // In the main window and frames
        types: ["main_frame", "sub_frame"]
    },
    ["blocking", "requestHeaders"]
);

manifest.json

{
  "name": "WebRequest UA test",
  "version": "1.0",
  "permissions": ["webRequest", "webRequestBlocking", "http://*/*"],
  "background": {
    "scripts": ["background.js"]
  },
  "manifest_version": 2
}

文档

• chrome.webRequest.onbeforeSendHeaders 事件莉>
• 请求过滤器

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