Ajax crawl urls

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "name": "Ajax crawl urls",
    "version": "1.1.1",
    "manifest_version": 2,
    "description": "Switch page to escaped fragment version.",
    "background": {
        "persistent": false,
        "scripts": [
            "bj.js"
        ]
    },
    "browser_action": {
        "default_icon": "seo_icon.png"
    },
    "permissions": [
        "activeTab",
        "tabs"
    ],
    "content_scripts": [
        {
            "matches": [
                "*:\/\/*\/_escaped_fragment_=*"
            ],
            "js": [
                "get_links.js"
            ]
        }
    ]
}