Minimal Http Headers

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "description": "View http(s) headers for the current webpage request",
  "version": "1.0",
  "name": "Minimal Http Headers",
  "background": {
    "page": "background.html",
    "persistent": true
  },
  "icons": {
    "128": "icon-128.png"
  },
  "browser_action": {
    "default_icon": {
      "128": "icon-128.png"
    },
    "default_title": "Minimal Http Headers",
    "default_popup": "popup.html"
  },
  "permissions": [
    "<all_urls>",
    "webRequest"
  ],
  "web_accessible_resources": [
    "icon-128.png",
    "icon-34.png"
  ],
  "manifest_version": 2,
  "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self'"
}