Can I use the HTTP range header to load partial files “on purpose”?

Question

I\'m playing around with the HTTP range header (specs).

From what I understand I can set byte ranges of files ala

0-199/2000
200-499/2000
500-799/20         


        

Answer 1

You are right the link which you posted in the comment would be probably the best approche. As your question sounded interesting i tried it out. You probably did it, but here is an snippet(for other that may come looking)

var xmlhttp=new XMLHttpRequest();
xmlhttp.open("GET","data.dat",false);
xmlhttp.setRequestHeader("Range", "bytes=100-200");
xmlhttp.send();
console.info(xmlhttp); //--> returns only the partial content
// Tested on Win7 with chrome 46+