backspace to back

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "name": "backspace to back",
    "version": "0.1.0",
    "manifest_version": 2,
    "description": "map backspace to history.go(-1)",
    "homepage_url": "https:\/\/github.com\/zhuangya\/backspace-to-back",
    "browser_action": {
        "default_icon": "icons\/icon-128.png",
        "default_title": "backspace to back"
    },
    "icons": {
        "16": "icons\/icon-16.png",
        "32": "icons\/icon-32.png",
        "128": "icons\/icon-128.png"
    },
    "content_scripts": [
        {
            "matches": [
                "*:\/\/*\/"
            ],
            "js": [
                "main.js"
            ]
        }
    ],
    "permissions": [
        "tabs",
        "http:\/\/*\/*",
        "https:\/\/*\/*"
    ]
}