data.json

{
    "//": "Regex to check for an already normalised user-agent",
    "isNormalized": "/(?i)^(\\w+)\\/(\\d+)(?:\\.(\\d+)(?:\\.(\\d+))?)?$/",

    "//": "The lowest version of each browser which has >=0.1% of global usage according to https://caniuse.com/usage-table",
    "baselineVersions": {
        "edge": "*",
        "edge_mob": "*",
        "ie": "8",
        "ie_mob": "11",
        "chrome": "29",
        "safari": "9",
        "ios_saf": "9",
        "ios_chr": "9",
        "firefox": "38",
        "firefox_mob": "38",
        "android": "4.3",
        "opera": "33",
        "op_mob": "10",
        "op_mini": "5",
        "bb": "6",
        "samsung_mob": "4"
    },
    
    "normalisations": [
		{
            "reason": "Chrome and Opera on iOS uses a UIWebView of the underlying platform to render content. By stripping the CriOS or OPiOS strings, the useragent parser will alias the user agent to ios_saf for the UIWebView, which is closer to the actual renderer",
            "regex": "/((CriOS|OPiOS)\\/(\\d+)\\.(\\d+)\\.(\\d+)\\.(\\d+)|(FxiOS\\/(\\d+)\\.(\\d+)))/"
        },
        {
		"reason": "Vivaldi browser is recognised by UA module but is actually identical to Chrome, so the best way to get accurate targeting is to remove the vivaldi token from the UA",
		"regex" :"/(?i) vivaldi\\/[\\d\\.]+\\d+/"
        },
        {
		"reason": "Facebook in-app browser `[FBAN/.....]` or `[FB_IAB/.....]` (see https://github.com/Financial-Times/polyfill-service/issues/990)",
		"regex": "/(?i) \\[(FB_IAB|FBAN|FBIOS|FB4A)\\/[^\\]]+\\]/"
        },
        {
		"reason": "Electron/X.Y.Z` (see https://github.com/Financial-Times/polyfill-service/issues/1129)",
        "regex": "/(?i) Electron\\/[\\d\\.]+\\d+/"
        }
    ],

    "//": "Aliases may be expressed in three formats:",
    "//": "1. <detectedfamily>: <targetfamily>",
    "//": "The browser family is renamed, version is maintained",
    "//": "2. <detectedfamily>: [<targetfamily>, <targetmajor>, <targetminor>, <targetpatch>]",
    "//": "The browser family is renamed and the version is set to the one specified",
    "//": "3. <detectedfamily>: { <semver>: [<targetfamily>, <targetmajor>, <targetminor>, <targetpatch>], ... }",
    "//": "Specific version ranges of this family are mapped to the specified browsers",
    "aliases": {
        "blackberry webkit": "bb",
        "blackberry": "bb",

        "pale moon (firefox variant)": "firefox",
        "pale moon": "firefox",
        "firefox mobile": "firefox_mob",
        "firefox namoroka": "firefox",
        "firefox shiretoko": "firefox",
        "firefox minefield": "firefox",
        "firefox alpha": "firefox",
        "firefox beta": "firefox",
        "microb": "firefox",
        "mozilladeveloperpreview": "firefox",
        "iceweasel": "firefox",

        "opera tablet": "opera",

        "opera mobile": "op_mob",
        "opera mini": "op_mini",

        "chrome mobile webview": "chrome",
        "chrome mobile": "chrome",
        "chrome frame": "chrome",
        "chromium": "chrome",
        "headlesschrome": "chrome",

        "ie mobile": "ie_mob",

        "ie large screen": "ie",
        "internet explorer": "ie",
        "edge mobile": "edge_mob",
        "uc browser": {
            "9.9": ["ie", 10]
        },

        "chrome mobile ios": "ios_chr",

        "mobile safari": "ios_saf",
        "iphone": "ios_saf",
        "iphone simulator": "ios_saf",
        "mobile safari uiwebview": "ios_saf",
        "mobile safari ui/wkwebview": "ios_saf",

        "samsung internet": "samsung_mob",

        "phantomjs": ["safari", 5],

        "yandex browser": {
            "14.10": ["chrome", 37],
            "14.8": ["chrome", 36],
            "14.7": ["chrome", 35],
            "14.5": ["chrome", 34],
            "14.4": ["chrome", 33],
            "14.2": ["chrome", 32],
            "13.12": ["chrome", 30],
            "13.10": ["chrome", 28],
            "17.9": ["chrome", 60]
        },

        "opera": {
            "20": ["chrome", 33],
            "21": ["chrome", 34],
            "22": ["chrome", 35],
            "23": ["chrome", 36],
            "24": ["chrome", 37],
            "25": ["chrome", 38],
            "26": ["chrome", 39],
            "27": ["chrome", 40],
            "28": ["chrome", 41],
            "29": ["chrome", 42],
            "30": ["chrome", 43],
            "31": ["chrome", 44],
            "32": ["chrome", 45],
            "33": ["chrome", 46],
            "34": ["chrome", 47],
            "35": ["chrome", 48],
            "36": ["chrome", 49],
            "37": ["chrome", 50],
            "38": ["chrome", 51],
            "39": ["chrome", 52],
            "40": ["chrome", 53],
            "41": ["chrome", 54],
            "42": ["chrome", 55],
            "43": ["chrome", 56],
            "44": ["chrome", 57],
            "45": ["chrome", 58],
            "46": ["chrome", 59],
            "47": ["chrome", 60]
        },

        "googlebot": {
            "2.1": ["chrome", 41]
        }
    }
}