id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
23472	Retrieve the first x bytes of a remote file	dd32		"A commonly useful functionality in HTTP clients is to only request the first x bytes of a document, this can be useful for example, when you only need to fetch the first few KB of a image so as to determine it's dimensions from the initial metadata in the file.

At present, we have no way to offer this through WP_HTTP, The attached patch is a first-scratch effort at adding it. No proper unit tests so far, just casual testing which confirms it working. 

Patch
* Supports all 3 transports
* Handles streaming-to-file as well
* Doesn't include Headers in the byte count
* Works with Redirects

I'll add some Unit tests for this soon hopefully."	enhancement	new	normal	3.6	HTTP		normal		has-patch