jlaportebot opened a new pull request, #67263:
URL: https://github.com/apache/airflow/pull/67263
## Description
In Airflow v3, the browser tab always shows "Airflow" regardless of which
page you're on, making it impossible to distinguish between multiple DAG tabs.
This is a regression from the React SPA rewrite (the static
`<title>Airflow</title>` in `index.html` is never updated).
## Changes
- **New hook**: `useDocumentTitle` in `src/utils/useDocumentTitle.ts` — sets
`document.title` to `{pageTitle} - Airflow` and resets to `Airflow` on unmount
- **Applied to all detail page headers**:
- **Dag** → `{dag_display_name} - Airflow`
- **Run** → `{dag_id} › {run_id} - Airflow`
- **TaskInstance** → `{dag_id} › {task_id} - Airflow`
- **MappedTaskInstance** → `{dag_id} › {task_display_name} - Airflow`
- **GroupTaskInstance** → `{task_display_name} - Airflow`
- **Task** → `{task_display_name} - Airflow`
- **Asset** → `{asset_name} - Airflow`
- **Tests**: Full test suite for the hook covering set, reset, unmount
cleanup, and dynamic updates
## Reproduction
1. Open any Airflow v3 instance
2. Navigate to a DAG detail page
3. Observe the browser tab — before: always "Airflow", after: "{DAG name} -
Airflow"
Closes #67145
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