Response.redirect() accepts relative URLs and does not serialize Location

[Monti-27]

Response.redirect() currently has two spec mismatches:

Response.redirect("https://example.com").headers.get("location")
// current: "https://example.com"
// expected: "https://example.com/"

try {
  Response.redirect("/foo");
  console.log("no throw");
} catch (e) {
  console.log(e.name);
}
// current: "no throw"
// expected: "TypeError"

The Fetch spec says Response.redirect() should parse the input URL and append the serialized parsed URL to the Location header.

So the current implementation is using the raw input string instead of the serialized parsed URL, and it also accepts relative redirect targets that should fail here.

[zhuzhu81998]

SpiderMonkey does not throw either. Are you sure the spec said this should be typerror?
Relative redirect targets sound like they should be valid.

[Monti-27]

SpiderMonkey does not throw either. Are you sure the spec said this should be typerror? Relative redirect targets sound like they should be valid.

You are right about the relative URL part. the bug is just that Location is not using the serialized parsed URL. I will narrow that part