chromium/src/third_party/blink/web_tests/http/tests/xmlhttprequest/web-apps/013-test.cgi

#!/usr/bin/perl -wT
use strict;

sleep 3;

$| = 1;
print "Status: 400 Good work\nContent-Type: text/plain\nCache-Control: no-store\n\nBODY";