[API] Fix Background Tasks Being Cancelled Prematurely #2618
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In the current fastapi version, there is a bug in the starlette package it uses for the background tasks. The bug causes the task to be cancelled if the client's http connection is closed before the task is done. The bug is fixed in the latest version of starlette & fastapi. We will upgrade in 1.3.0, but until then we will use this workaround to prevent the task from being cancelled all together. See encode/starlette#1438 and tiangolo/fastapi#5606