Remove note about BackgroundTasks being a limitation on the `BaseHT…

…TPMiddleware` (#1874) Co-authored-by: Adrian Garcia Badaracco <1755071+adriangb@users.noreply.github.com>
encode · Feb 13, 2023 · e271059 · e271059
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diff --git a/docs/middleware.md b/docs/middleware.md
@@ -243,7 +243,6 @@ around explicitly, rather than mutating the middleware instance.
 
 Currently, the `BaseHTTPMiddleware` has some known limitations:
 
-- It's not possible to use `BackgroundTasks` with `BaseHTTPMiddleware`. Check [#1438](https://github.com/encode/starlette/issues/1438) for more details.
 - Using `BaseHTTPMiddleware` will prevent changes to [`contextlib.ContextVar`](https://docs.python.org/3/library/contextvars.html#contextvars.ContextVar)s from propagating upwards. That is, if you set a value for a `ContextVar` in your endpoint and try to read it from a middleware you will find that the value is not the same value you set in your endpoint (see [this test](https://github.com/encode/starlette/blob/621abc747a6604825190b93467918a0ec6456a24/tests/middleware/test_base.py#L192-L223) for an example of this behavior).
 
 To overcome these limitations, use [pure ASGI middleware](#pure-asgi-middleware), as shown below.