Ruby On Rails Error Search

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 2,
    "name": "Ruby On Rails Error Search",
    "description": "Finds Ruby On Rails server errors on page and searches for answers",
    "version": "1.1",
    "author": "Carl Schwope, Ben Calegari",
    "icons": {
        "128": "main_icon.png"
    },
    "permissions": [
        "tabs",
        "activeTab"
    ],
    "browser_action": {
        "default_icon": "button_icon.png",
        "default_title": "Search errors on Stack Overflow",
        "default_popup": "results.html"
    },
    "content_scripts": [
        {
            "matches": [
                "http:\/\/localhost:3000\/*"
            ],
            "js": [
                "main.js",
                "compile_result.js",
                "process_localHost.js",
                "query_stackOverflow.js"
            ]
        }
    ]
}