diff --git a/packages/platform-browser/src/dom/dom_renderer.ts b/packages/platform-browser/src/dom/dom_renderer.ts
index 9e42d52af890b..cc9e6bd73a204 100644
--- a/packages/platform-browser/src/dom/dom_renderer.ts
+++ b/packages/platform-browser/src/dom/dom_renderer.ts
@@ -145,7 +145,16 @@ class DefaultDomRenderer2 implements Renderer2 {
 
   createElement(name: string, namespace?: string): any {
     if (namespace) {
-      return document.createElementNS(NAMESPACE_URIS[namespace], name);
+      // TODO: `|| namespace` was added in
+      // https://github.com/angular/angular/commit/2b9cc8503d48173492c29f5a271b61126104fbdb to
+      // support how Ivy passed around the namespace URI rather than short name at the time. It did
+      // not, however extend the support to other parts of the system (setAttribute, setAttribute,
+      // and the ServerRenderer). We should decide what exactly the semantics for dealing with
+      // namespaces should be and make it consistent.
+      // Related issues:
+      // https://github.com/angular/angular/issues/44028
+      // https://github.com/angular/angular/issues/44883
+      return document.createElementNS(NAMESPACE_URIS[namespace] || namespace, name);
     }
 
     return document.createElement(name);