fix: URL constructor throws confusing error on invalid scheme (#5057)

1 files changed, 2 insertions, 2 deletions

diff --git a/cli/js/web/url.ts b/cli/js/web/url.ts
index 1ae24ff87..cdbba36d9 100644
--- a/cli/js/web/url.ts
+++ b/cli/js/web/url.ts
@@ -370,7 +370,7 @@ export class URLImpl implements URL {
       throw new TypeError("Invalid URL.");
     }
 
-    const { port } = (urlParts.protocol ? urlParts : baseParts) as URLParts;
+    const { port } = !urlParts.protocol && baseParts ? baseParts : urlParts;
     if (this.#validatePort(port) === undefined) {
       throw new TypeError("Invalid URL.");
     }
@@ -389,7 +389,7 @@ export class URLImpl implements URL {
         hash: urlParts.hash,
       });
     } else {
-      throw new TypeError("URL requires a base URL.");
+      throw new TypeError("Invalid URL.");
     }
 
     this.#updateSearchParams();