---
title: "init(jsonData:manifestURL:)"
framework: browserenginekit
role: symbol
role_heading: Initializer
path: "browserenginekit/bewebappmanifest/init(jsondata:manifesturl:)-3azfg"
---

# init(jsonData:manifestURL:)

Returns nil if manifestURL is invalid or jsonData cannot be parsed.

## Declaration

```swift
init?(jsonData: Data, manifestURL: URL)
```

## See Also

### Creating a web app manifest

- [init(JSONData:manifestURL:)](browserenginekit/bewebappmanifest/init(jsondata:manifesturl:)-4zjpz.md)