Examine source code of Vider le cache

{
  "manifest_version": 2,
  "name": "Vider le cache",
  "version": "2.1",
  "description": "Vide le cache d'Oktopus, Mycom, ...",
  "homepage_url": "http://www.youlead.fr",
  "background": {
    "scripts": [
      "empty_cache.js"
    ]
  },
  "icons": {
    "48": "icons/empty_cache-48.png"
  },
  "browser_action": {
    "default_title": "Vider le cache",
    "default_icon": "icons/empty_cache-16.png"
  },
  "permissions": [
    "browsingData",
    "tabs"
  ],
  "commands": {
    "empty-cache": {
      "suggested_key": {
        "default": "Ctrl+Shift+X"
      },
      "description": " 'Vider le cache"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f41ae6f1-f5cb-40fe-a5e1-ad0366fe00d5}"
    }
  }
}