---
title: "dispatchMessageToScript(withName:userInfo:)"
framework: safariservices
role: symbol
role_heading: Instance Method
path: "safariservices/sfsafaripage/dispatchmessagetoscript(withname:userinfo:)"
---

# dispatchMessageToScript(withName:userInfo:)

Dispatches a message from the app extension to the content script injected in this page.

## Declaration

```swift
func dispatchMessageToScript(withName messageName: String, userInfo: [String : Any]? = nil)
```

## Parameters

- `messageName`: A string that identifies the message.
- `userInfo`: An optional dictionary containing additional message content. If a dictionary is provided, values must conform to the W3C standard for safe passing of structured data, such as Boolean objects, numeric values, strings, and arrays.

## Mentioned in

Adjusting settings for contextual menu items Passing messages between Safari app extensions and injected scripts