Post Processing Hack Editor

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Post Processing Hack Editor",
  "short_name": "Post Processing Hack Editor",
  "version": "0.12",
  "manifest_version": 2,
  "description": "Edit a pass of postprocessing shader on top of a live web page canvas element.",
  "background": {
    "scripts": [
      "action.js"
    ]
  },
  "browser_action": {
    "default_icon": "icon.png"
  },
  "permissions": [
    "<all_urls>",
    "tabs",
    "activeTab"
  ],
  "offline_enabled": true,
  "web_accessible_resources": [
    "shaders/main.vert",
    "shaders/main.frag"
  ],
  "content_security_policy": "script-src 'self' https://www.google-analytics.com; object-src 'self'"
}