Multipart-Form-Data in akka-http, missing quotes in Content-Disposition field

[KrzyMucha]

When we use akka-http for http request with following code:

Multipart
            .FormData(Multipart.FormData.BodyPart("file",
                HttpEntity.Strict(MediaTypes.`image/jpeg`, ByteString("test")), Map("filename" -> "somefile.jpeg"))).toEntity()

Then Http request is as follows

User-Agent: [akka-http/2.4.8]
Transfer-Encoding: [chunked]
Host: [localhost:8089]
Content-Type: [multipart/form-data; boundary=xWtacaNwjOWLKFExaR8fOv6Q; charset=UTF-8]

--xWtacaNwjOWLKFExaR8fOv6Q
Content-Type: image/jpeg
Content-Disposition: form-data; filename=somefile.jpeg; name=file

test
--xWtacaNwjOWLKFExaR8fOv6Q--

Parameters filename and file are without quotation marks. However following HTTP specification this params should be quoted. As result some servers (ex. "django" app) are not able to see attached files.

[KrzyMucha]

Information about requirement I found here: https://www.w3.org/Protocols/rfc2616/rfc2616-sec19.html, paragraph 19.5.1 Content-Disposition

filename-parm = "filename" "=" quoted-string
disp-extension-parm = token "=" ( token | quoted-string )

[ktoso]

Opened this ticket already, closing as duplicate.
Please post here: #386