Add response headers doesn’t seem to work

[bgelens]

running core tools 2.7.1373 on macOS and published on Azure Function App

When trying to add response headers, they do not get appended correctly.

Push-OutputBinding -Name Response -Value ([HttpResponseContext]@{
      StatusCode = [HttpStatusCode]::NoContent
      ContentType = 'text/plain'
      Headers = @{
        foo = ‘bar’
      }
    })

$result.Headers

Key            Value
---            -----
Date           {Wed, 03 Jul 2019 15:24:03 GMT}
Server         {Kestrel}
Content-Type   {text/plain; charset=utf-8}
Content-Length {128}

$result.RawContent
HTTP/1.1 200 OK
Date: Wed, 03 Jul 2019 15:24:03 GMT
Server: Kestrel
Content-Type: text/plain; charset=utf-8
Content-Length: 128

{"method":"","query":{},"statusCode":"204","headers":{"foo":"bar","content-type":"text/plain"},"enableContentNegotiation":false}

Expecting $result.Headers[“foo”]

[bgelens]

setting content-type by assigning via headers also doesn’t work

Push-OutputBinding -Name Response -Value ([HttpResponseContext]@{
      StatusCode = [HttpStatusCode]::NoContent
      Headers = @{
        'content-type' = 'application/json'
        "foo” = “bar”
      }
    })

$result.rawcontent

RawContent : HTTP/1.1 200 OK                                                                                                                             Date: Thu, 04 Jul 2019 17:31:54 GMT                                                                                                         Server: Kestrel
             Content-Type: text/plain; charset=utf-8
             Content-Length: 343

             {"method":"","query":{},"statusCode":"204","headers":{"foo”:"bar”,"content-type":"application/json"},"enableContentNegotiation":false}

$result.headers

Key            Value                                                                                                                       
---            -----  
Date           {Thu, 04 Jul 2019 17:35:00 GMT}
Server         {Kestrel}
Content-Type   {text/plain; charset=utf-8}
Content-Length {341}

AFAICT, both adding response Headers and overwriting content-type via headers should be possible

[AnatoliB]

It looks like we have a problem when the Body property is not specified. So, the workaround is to assign any string to Body - an empty string will do, but not $null. This code:

Push-OutputBinding -Name Response -Value ([HttpResponseContext]@{
      StatusCode = [HttpStatusCode]::NoContent
      ContentType = 'text/plain'
      Headers = @{
        foo = ‘bar’
      }
      Body = ''
    })

produces the following raw output:

HTTP/1.1 204 NoContent
Request-Context: appId=***
foo: bar
Date: Wed, 10 Jul 2019 20:47:56 GMT
Content-Type: text/plain; charset=utf-8

@bgelens This is still a bug that we want to fix, but please try the workaround in the meantime.

[bgelens]

On holiday right now. Will try next week. Thanks!

[bgelens]

Just checked, this workaround does the trick!

I’ll leave the issue open for bug tracking