yourepl

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "name": "__MSG_appName__",
    "version": "0.0.4",
    "manifest_version": 2,
    "description": "__MSG_appDescription__",
    "icons": {
        "16": "images\/icon-16.png",
        "128": "images\/icon-128.png"
    },
    "default_locale": "en",
    "background": {
        "scripts": [
            "scripts\/background.js"
        ],
        "persistent": true
    },
    "externally_connectable": {
        "matches": [
            "https:\/\/repl.it\/*",
            "https:\/\/*.youtube.com\/*"
        ]
    },
    "permissions": [
        "tabs",
        "https:\/\/www.youtube.com\/*",
        "https:\/\/repl.it\/*",
        "background",
        "storage"
    ],
    "web_accessible_resources": [
        "css\/repl.css",
        "css\/youtube.css",
        "css\/repl-button.css",
        "scripts\/libs\/jquery.js",
        "scripts\/libs\/zoom-and-pan.js",
        "scripts\/libs\/utils.js",
        "scripts\/libs\/iframe-as-container.js",
        "scripts\/libs\/function.prototype.stateful.js",
        "scripts\/yt-event-proxy.js",
        "scripts\/repl-button.js",
        "scripts\/on-installed.js",
        "scripts\/save-repls.js",
        "scripts\/yourepl.js"
    ],
    "content_scripts": [
        {
            "matches": [
                "https:\/\/www.youtube.com\/*",
                "https:\/\/repl.it\/*"
            ],
            "js": [
                "scripts\/inject-start.js"
            ],
            "run_at": "document_end",
            "all_frames": true
        }
    ]
}