Imgur Gif/Webm Warnings

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Imgur Gif/Webm Warnings",
  "manifest_version": 2,
  "version": "1.0",
  "description": "A tool to help streamers being careful with gifs/webms from chat.",
  "icons": {
    "128": "icon_128.png"
  },
  "permissions": [
    "tabs",
    "http://imgur.com/*",
    "https://imgur.com/*",
    "http://*.imgur.com/*",
    "https://*.imgur.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "http://imgur.com/*",
        "https://imgur.com/*",
        "http://*.imgur.com/*",
        "https://*.imgur.com/*"
      ],
      "js": [
        "imgurscript.js"
      ],
      "run_at": "document_end"
    }
  ]
}