EmojiBar for Facebook Messenger

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "name": "EmojiBar for Facebook Messenger",
    "description": "The fastest way to send emoji on FB Messenger (messenger.com and facebook.com\/messages)! Type a colon to bring up the emoji picker.",
    "version": "1.0.1",
    "manifest_version": 2,
    "background": {
        "scripts": [
            "eventPage.bundle.js"
        ],
        "persistent": false
    },
    "icons": {
        "16": "icons\/icon16.png",
        "48": "icons\/icon48.png",
        "128": "icons\/icon128.png"
    },
    "permissions": [
        "tabs",
        "windows",
        "https:\/\/*.messenger.com\/*",
        "https:\/\/*.facebook.com\/messages\/*"
    ],
    "content_security_policy": "default-src 'self'; script-src 'self' http:\/\/localhost:3000 https:\/\/localhost:3000 'unsafe-eval'; connect-src http:\/\/localhost:3000 https:\/\/localhost:3000; style-src * 'unsafe-inline' 'self' blob:; img-src 'self' data:;"
}