Qrcode

默认使用当前页面的URL生成二维码，若当前页面有文本选中时，则生成选中区域文字的二维码

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manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Qrcode",
  "version": "1.0",
  "description": "默认使用当前页面的URL生成二维码，若当前页面有文本选中时，则生成选中区域文字的二维码",
  "browser_action": {
    "default_icon": "images/icon.png",
    "default_title": "Qrcode",
    "default_popup": "index.html"
  },
  "content_scripts": [
    {
      "all_frames": true,
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "js/content.js"
      ],
      "run_at": "document_end"
    }
  ],
  "manifest_version": 2,
  "permissions": [
    "tabs"
  ]
}