Azure Function (HttpTrigger) returns response code 0 instead of 204 intermittently

[boylec]

Hey guys, this issue was closed awhile back but it shouldn't be. Forcing people to put a retry on a function just because it sometimes returns a 0 response code (when that is not by design) is not a solution.

We get a 0 response code probably 1 in 20 times. when the function succeeded.

Note, our API endpoint is not being called by Azure Data Factory, its being called by an external party so we do not have control over their retry policies.

Originally posted by @ankitkumarr in https://github.com/Azure/azure-functions-host/issues/5813#issuecomment-628221016