fix(url): fix url construction by using a non existant url instead

Author: jonluca

lib/util/url.ts

@@ -26,10 +26,11 @@ export const parse = (u: string | URL) => new URL(u);
  * @returns
  */
 export function resolve(from: string, to: string) {
- const fromUrl = new URL(convertPathToPosix(from), "resolve://");
+ // we use a non-existent URL to check if its a relative URL
+ const fromUrl = new URL(convertPathToPosix(from), "https://aaa.nonexistanturl.com");
  const resolvedUrl = new URL(convertPathToPosix(to), fromUrl);
  const endSpaces = to.match(/(\s*)$/)?.[1] || "";
- if (resolvedUrl.protocol === "resolve:") {
+ if (resolvedUrl.hostname === "aaa.nonexistanturl.com") {
  // `from` is a relative URL.
  const { pathname, search, hash } = resolvedUrl;
  return pathname + search + hash + endSpaces;