JSON to CSV

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "description": "download .JSON to .CSV or in other words; custom csv from json feeds or files.",
  "name": "JSON to CSV",
  "content_scripts": [
    {
      "js": [
        "jsontocsv.user.js"
      ],
      "run_at": "document_idle",
      "matches": [
        "<all_urls>",
        "file:///*"
      ]
    }
  ],
  "action": {
    "default_icon": {
      "19": "images/inactive/icon19.png",
      "38": "images/inactive/icon38.png"
    },
    "default_title": "JSON to CSV",
    "default_popup": "popup.html"
  },
  "background": {
    "service_worker": "background.js"
  },
  "icons": {
    "16": "images/icon16.png",
    "32": "images/icon32.png",
    "48": "images/icon48.png",
    "64": "images/icon64.png",
    "128": "images/icon128.png"
  },
  "options_page": "options.html",
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'",
    "sandbox": "sandbox allow-scripts; script-src 'self' 'unsafe-eval';"
  },
  "sandbox": {
    "pages": [
      "popup_sandbox.html"
    ]
  },
  "permissions": [
    "activeTab"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "version": "0.0.1.13"
}