Generated ads localhost should follow baseURI port if one exists (#36238

) * Ads localhost should follow baseURI port if one exists. * Add parens around ports
ampproject · Oct 6, 2021 · 07267c2 · 07267c2
1 parent 1ddd283
commit 07267c2
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/src/3p-frame.js b/src/3p-frame.js
@@ -294,7 +294,13 @@ function getAdsLocalhost(win) {
   if (adsUrl == 'https://3p.ampproject.net') {
     adsUrl = 'http://ads.localhost'; // local dev with a localhost server
   }
-  return adsUrl + ':' + (win.location.port || win.parent.location.port);
+  return (
+    adsUrl +
+    ':' +
+    (new URL(win.document.baseURI)?.port ||
+      win.location.port ||
+      win.parent.location.port)
+  );
 }
 
 /**