Polymer DevTools Extension

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Polymer DevTools Extension",
  "version": "0.0.9",
  "description": "Shows information about Polymer elements",
  "permissions": [
    "tabs",
    "http://*/*",
    "https://*/*"
  ],
  "background": {
    "scripts": [
      "src/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>",
        "*://*/*",
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "src/content-script.js"
      ],
      "run_at": "document_start"
    }
  ],
  "devtools_page": "src/devtools.html",
  "web_accessible_resources": [
    "src/document-context/measure-custom-elements.js",
    "src/document-context/measure-custom-elements.js.map",
    "src/document-context/measure-custom-elements.ts"
  ],
  "manifest_version": 2
}