HTML Error Checker

Check the HTML for error. This doesn't send the source to the external. If web page behavior is not correct, you should turn off it.

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manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "__MSG_extName__",
  "short_name": "HEC",
  "description": "__MSG_extDescription__",
  "version": "0.5.0.5",
  "default_locale": "ja",
  "permissions": [
    "activeTab"
  ],
  "web_accessible_resources": [
    "img/icon.png"
  ],
  "icons": {
    "16": "img/icon.png",
    "32": "img/icon.png",
    "48": "img/icon.png",
    "128": "img/icon.png"
  },
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "browser_action": {
    "default_icon": "img/icon.png",
    "default_popup": "popup.html"
  },
  "options_page": "options.html",
  "content_scripts": [
    {
      "js": [
        "js/htmlerrorchecker.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "homepage_url": "https://twitter.com/kzms2",
  "manifest_version": 2
}