Relative URL for Location response header causes TypeError (e.g. 201 Created)

[xelaris]

Environment

httpxy 0.1.5
node 20 (but doesn't really matter)

Reproduction

not needed, I think

Describe the bug

If the server responds with a relativ URL in the Location header (e.g. in case of 201 Created), it causes an "Uncaught TypeError: Invalid URL" error, since there is no second parameter to the URL constructor in:

httpxy/src/middleware/web-outgoing.ts

Line 38 in 1f62fff

const u = new URL(proxyRes.headers.location);

For example:

HTTP/1.1 201 Created
Location: /api/books/1

Additional context

The Location response header is allowed to contain a relativ URL, according to: https://www.rfc-editor.org/rfc/rfc9110#field.location

The URL constructor needs a base argument in that case: https://nodejs.org/api/url.html#new-urlinput-base

Logs

No response