---
title: "goBack(for:completionHandler:)"
framework: webkit
role: symbol
role_heading: Instance Method
path: "webkit/wkwebextensiontab/goback(for:completionhandler:)"
---

# goBack(for:completionHandler:)

Called to navigate the tab to the previous page in its history.

## Declaration

```swift
optional func goBack(for context: WKWebExtensionContext, completionHandler: @escaping ((any Error)?) -> Void)
```

```swift
optional func goBack(for context: WKWebExtensionContext) async throws
```

## Parameters

- `context`: The context in which the web extension is running.
- `completionHandler`: A block that must be called upon completion. It takes a single error argument, which should be provided if any errors occurred.

## Discussion

Discussion Navigates to the previous page in the tab’s web view via goBack() if not implemented.