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Fixed #30694 -- Documented FileResponse does not seek its file source.
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@ -67,6 +67,7 @@ Here's a "Hello World" example::
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# FileResponse sets the Content-Disposition header so that browsers
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# present the option to save the file.
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buffer.seek(0)
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return FileResponse(buffer, as_attachment=True, filename='hello.pdf')
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The code and comments should be self-explanatory, but a few things deserve a
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@ -1122,6 +1122,8 @@ Attributes
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If ``open_file`` doesn't have a name or if the name of ``open_file`` isn't
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appropriate, provide a custom file name using the ``filename`` parameter.
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Note that if you pass a file-like object like ``io.BytesIO``, it's your
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task to ``seek()`` it before passing it to ``FileResponse``.
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The ``Content-Length`` and ``Content-Type`` headers are automatically set
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when they can be guessed from contents of ``open_file``.
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