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# WKWebExtension.MatchPattern

An object that represents a way to specify groups of URLs.

```
@MainActor class MatchPattern
```

## Overview

All match patterns are specified as strings. Apart from the special `<all_urls>` pattern, match patterns
consist of three parts: scheme, host, and path.

## Topics

### Errors

[`WKWebExtension.MatchPattern.Error`](/documentation/WebKit/WKWebExtension/MatchPattern/Error)

Constants that indicate errors in the [`WKWebExtension.MatchPattern`](/documentation/WebKit/WKWebExtension/MatchPattern) domain.

[`WKWebExtension.MatchPattern.Error.Code`](/documentation/WebKit/WKWebExtension/MatchPattern/Error/Code)

Constants that indicate errors in the [`WKWebExtension.MatchPattern`](/documentation/WebKit/WKWebExtension/MatchPattern) domain.

[`errorDomain`](/documentation/WebKit/WKWebExtension/MatchPattern/errorDomain)

A string that identifies the error domain.

### Enumerations

[`WKWebExtension.MatchPattern.Options`](/documentation/WebKit/WKWebExtension/MatchPattern/Options)

Constants used by [`WKWebExtension.MatchPattern`](/documentation/WebKit/WKWebExtension/MatchPattern) to indicate matching options.

### Structures

[`WKWebExtension.MatchPattern.Options`](/documentation/WebKit/WKWebExtension/MatchPattern/Options)

Constants used by [`WKWebExtension.MatchPattern`](/documentation/WebKit/WKWebExtension/MatchPattern) to indicate matching options.


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