From 7f91e0b687bfc4775ce7a92ca77788d35b83b8b6 Mon Sep 17 00:00:00 2001
From: rsinukov <rxsinukov@gmail.com>
Date: Tue, 18 Oct 2022 14:45:21 +0200
Subject: [PATCH] KTOR-4993 Fix UrlBuilder origin in iframe

---
 ktor-http/js/src/io/ktor/http/URLBuilderJs.kt | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/ktor-http/js/src/io/ktor/http/URLBuilderJs.kt b/ktor-http/js/src/io/ktor/http/URLBuilderJs.kt
index e1693ca3fa..11573e5749 100644
--- a/ktor-http/js/src/io/ktor/http/URLBuilderJs.kt
+++ b/ktor-http/js/src/io/ktor/http/URLBuilderJs.kt
@@ -16,10 +16,18 @@ import org.w3c.workers.*
  */
 public actual val URLBuilder.Companion.origin: String
     get() = when {
-        PlatformUtils.IS_BROWSER -> if (js("typeof window !== 'undefined'") as Boolean) {
-            window.location.origin
-        } else {
-            js("self.location.origin") as String
+        PlatformUtils.IS_BROWSER -> {
+            js(
+                """
+                var origin = ""
+                if (typeof window !== 'undefined') {
+                  origin = window.location.origin 
+                } else {
+                  origin = self.location.origin 
+                }
+                origin && origin != "null" ? origin : "http://localhost"
+                """
+            ) as String
         }
         else -> "http://localhost"
     }