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Document Managed Auth tab ownership #462

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masnwilliams merged 1 commit into from
Jul 24, 2026
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Document Managed Auth tab ownership #462

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6 changes: 6 additions & 0 deletions auth/profiles.mdx
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Expand Up @@ -180,6 +180,12 @@ fmt.Println("Live view:", kernelBrowser2.BrowserLiveViewURL)

By default, Profiles restore existing tabs saved in the profile. Pass `start_url` with the profile to clear those restored tabs and open a specific page when the new browser starts.

<Note>
Managed Auth controls the tab state of profiles attached to auth connections. Each login or automatic re-authentication starts in a single tab at the configured login URL, or at the domain homepage when no login URL is configured. After a successful authentication, Kernel saves the resulting tab state with the updated authentication data. Failed and canceled sessions leave the saved profile unchanged.

Don't depend on previous tabs or windows remaining in a Managed Auth profile. Set `start_url` when you create a browser if your automation requires a specific first page.
</Note>

<CodeGroup>
```typescript Typescript/Javascript
const browser = await kernel.browsers.create({
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