# 3.2. Browser data

When generating a card payment that requires 3D Secure authorization, information about the payer's browser must be collected and passed in an additional `additionalData` object.

The structure is as follows:

| Parameter            | Type     | Required | Description |
|---------------------|----------|----------|-------------|
|`browser`            | object   | ✔️       | Information about the payer's browser |
|`browser.ip`         | string   | ✔️       | IP address. Allowed values: "ipv4", "ipv6" |
|`browser.language`   | string   | ✔️       | Browser language specified in UNICODE format, e.g. "pl-PL" |
|`browser.jsEnabled`  | boolean  | ✔️       | Specifies whether JavaScript support is enabled in the browser |
|`browser.timezoneOffset`| integer | ✔️     | Time-zone offset value between UTC and the cardholder browser's local time, in minutes. |
|`browser.userAgent`  | string   | ✔️       | Information about the client application used |
|`browser.accept`     | string   | ✔️       | Exact contents of the HTTP accept headers, MIME type |
|`browser.javaEnabled`| boolean  | ✔️       | Specifies whether Java support is enabled in the browser |
|`browser.screenColorDepth`| integer | ✔️   | Color depth bit value for image display in bits per pixel, obtained from the cardholder browser, range: 1-48 bits |
|`browser.screenHeight`| integer | ✔️       | Browser window height in px |
|`browser.screenWidth`| integer  | ✔️       | Browser window width in px |

#### Example of the object being passed

```json
"additionalData": {
    "browser": {
            "ip": "127.0.0.1",
            "language": "pl-PL",
            "jsEnabled": true,
            "timezoneOffset": 100,
            "userAgent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome 87.0.4280.66 Safari/537.36",
            "accept": "application/json, text/javascript, */*; q=0.01",
            "javaEnabled": false,
            "screenColorDepth": 24,
            "screenHeight": 1080,
            "screenWidth": 2560
        }
    }
```