Kingsquare HTML Validator

manifest.json

{
  "update_url": "http://clients2.google.com/service/update2/crx",
  "name": "Kingsquare HTML Validator",
  "version": "1.4",
  "manifest_version": 2,
  "description": "A HTML5 validation library, using a JavaScript port of the excellent TIDY library",
  "devtools_page": "devtools.html",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "16": "16x16.png",
    "48": "48x48.png",
    "128": "128x128.png"
  },
  "page_action": {
    "default_icon": "loading.gif",
    "default_title": "Checkout Development Tools / HTML validator for more info"
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "permissions": [
    "http://*/*"
  ],
  "offline_enabled": true
}