ajax - YES or NO: Can a server send an HTTP response, while still uploading the file from the correlative HTTP request? -

if website user submits html form with: (1) post method; (2) multipart/form-data enctype; and, (3) large attached file, can server upload posted file, , send server generated http response before file upload completed, without using ajax?

that's pretty dense. so, wrote example illustrate mean. let's there image upload form caption field.

  <form action="upload-with-caption/" method="post" enctype="multipart/form-data">     <input type="hidden" id="hiddeninfo" name="hiddeninfo" />     file:     <input type="file" name="imgfile" id="imgfile" /><br />     caption:  <input type="text" name="caption" id="caption" />         <input type="submit" />   </form> 

i want store caption in database table the definition:

[files_table]

• file_id [uniqueidentifier]
• file_caption [varchar(500)]
• file_status [int]

then want upload file /root/{unique-id}/filename.ext.

file_status mapped c# enum following definition:

enum  fileuploadstatus{     error = 0,     uploading = 1,     uploaded = 2 } 

when form submits, if file large process in 1 second, want send webpage response says uploading.

can single synchronous http post?

note: want check status updates later using ajax, not question asking. asking if file can continue upload after response sent.

http synchronous protocol.
cannot send response until receive entire request.