NHK Easy Furigana Toggle

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "NHK Easy Furigana Toggle",
  "version": "0.1",
  "manifest_version": 2,
  "description": "Toggles furigana on or off on the NHK Easy new page.",
  "icons": {
    "128": "images/icon128.png"
  },
  "browser_action": {
    "default_icon": "images/icon128.png",
    "default_title": "Furigana on/off"
  },
  "permissions": [
    "http://www3.nhk.or.jp/news/easy/*",
    "https://www3.nhk.or.jp/news/easy/*"
  ],
  "background": {
    "persistent": false,
    "scripts": [
      "scripts/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "http://www3.nhk.or.jp/news/easy/*",
        "https://www3.nhk.or.jp/news/easy/*"
      ],
      "js": [
        "scripts/cs.js"
      ],
      "run_at": "document_end"
    }
  ]
}