Send multipart/form-data with antd upload

• I have searched the issues of this repository and believe that this is not a duplicate.

Version

3.8.0

Environment

react: 16.4.2, antd: 3.8.0, chrome: 67.0.3396.99

Reproduction link

Steps to reproduce

You can find the code with the issue in this sandbox: https://codesandbox.io/s/j3q07kyy8w

What is expected?

Request Payload:

------WebKitFormBoundaryysdTGvf0cRZVGpQ4
Content-Disposition: form-data; name="file"; filename="aFileName.zip"
Content-Type: application/octet-stream

[0,1,2]
------WebKitFormBoundaryysdTGvf0cRZVGpQ4
Content-Disposition: form-data; name="x2"

y2
------WebKitFormBoundaryysdTGvf0cRZVGpQ4
Content-Disposition: form-data; name="x3"

true
------WebKitFormBoundaryysdTGvf0cRZVGpQ4
Content-Disposition: form-data; name="x4"

2
------WebKitFormBoundaryysdTGvf0cRZVGpQ4

What is actually happening?

Request Payload:

------WebKitFormBoundaryysdTGvf0cRZVGpQ4
Content-Disposition: form-data; name="file"; filename="aFileName.zip"
Content-Type: application/zip


------WebKitFormBoundaryysdTGvf0cRZVGpQ4

---

This is the question on stackoverflow: https://stackoverflow.com/q/51697944/2648837

[yokyj]

well you may do it in customRequest

		customRequest: (options: any) => {
			const data= new FormData()
			data.append('file', options.file)
			const config= {
				"headers": {
					"content-type": 'multipart/form-data; boundary=----WebKitFormBoundaryqTqJIxvkWFYqvP5s'
				}
			}
			axios.post(options.action, data, config).then((res: any) => {
				options.onSuccess(res.data, options.file)
			}).catch((err: Error) => {
				console.log(err)
			})
			
		},

[raconstruct]

Hi @Mohamed-Ghanem The Code sandbox not working Man