1 files changed, 17 insertions, 0 deletions
diff --git a/dom/base/Location.cpp b/dom/base/Location.cpp
index 7b3722f09..5f8738298 100644
--- a/dom/base/Location.cpp
+++ b/dom/base/Location.cpp
@@ -730,6 +730,23 @@ Location::SetProtocol(const nsAString& aProtocol)
   if (NS_FAILED(rv)) {
     return rv;
   }
+  
+  bool isHttp;
+  rv = uri->SchemeIs("http", &isHttp);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return rv;
+  }
+
+  bool isHttps;
+  rv = uri->SchemeIs("https", &isHttps);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return rv;
+  }
+
+  if (!isHttp && !isHttps) {
+    // No-op, per spec.
+    return NS_OK;
+  }
 
   return SetURI(uri);
 }