Fix `origin` missing `protocol` in `URL`

Fixes https://github.com/oven-sh/bun/issues/1244

2 files changed, 24 insertions, 1 deletions

diff --git a/src/bun.js/bindings/URLDecomposition.cpp b/src/bun.js/bindings/URLDecomposition.cpp
index 84e734528..f13d6b093 100644
--- a/src/bun.js/bindings/URLDecomposition.cpp
+++ b/src/bun.js/bindings/URLDecomposition.cpp
@@ -31,7 +31,21 @@ namespace WebCore {
 
 String URLDecomposition::origin() const
 {
-    return fullURL().hostAndPort();
+    auto fullURL = this->fullURL();
+    auto protocol = fullURL.protocol();
+    auto host = fullURL.host();
+    auto port = fullURL.port();
+
+    if (protocol == "file"_s)
+        return "file://"_s;
+
+    if (protocol.isEmpty() && host.isEmpty())
+        return {};
+
+    if (!port)
+        return makeString(protocol, "://", host);
+
+    return makeString(protocol, "://", host, ':', static_cast<uint32_t>(*port));
 }
 
 String URLDecomposition::protocol() const
diff --git a/test/bun.js/web-globals.test.js b/test/bun.js/web-globals.test.js
index c5740b0fc..70c2f01e5 100644
--- a/test/bun.js/web-globals.test.js
+++ b/test/bun.js/web-globals.test.js
@@ -96,3 +96,12 @@ it("crypto.randomUUID", () => {
     expect(uuid2[23]).toBe("-");
   }
 });
+
+it("URL.prototype.origin", () => {
+  const url = new URL("https://html.spec.whatwg.org/");
+  const { origin, host, hostname } = url;
+
+  expect(hostname).toBe("html.spec.whatwg.org");
+  expect(host).toBe("html.spec.whatwg.org");
+  expect(origin).toBe("https://html.spec.whatwg.org");
+});