varnishtest "Test case for #1557"

server s1 {
	rxreq
	expect req.url == "/?foobar=2"
	txresp
} -start

varnish v1 -vcl+backend {
	sub vcl_recv {
		set req.url = regsuball(req.url,
		    "(?<=[&\?])(foo|bar)=[^&]+(?:&|$)", "");
	}
} -start

client c1 {
	txreq -url "/?foo=0&bar=1&foobar=2"
	rxresp
} -run
