From c52b3b499756fd6913eb92c5317eb23c01deec93 Mon Sep 17 00:00:00 2001
From: Adam Bradley <adamdbradley@users.noreply.github.com>
Date: Tue, 23 Jul 2019 16:11:29 -0500
Subject: [PATCH] fix(hydrate): check for client runtime method (#18866)

---
 .../directives/navigation/stack-controller.ts    | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/angular/src/directives/navigation/stack-controller.ts b/angular/src/directives/navigation/stack-controller.ts
index 4a277eae99..2fcbe94824 100644
--- a/angular/src/directives/navigation/stack-controller.ts
+++ b/angular/src/directives/navigation/stack-controller.ts
@@ -225,13 +225,15 @@ export class StackController {
         containerEl.appendChild(enteringEl);
       }
 
-      return containerEl.commit(enteringEl, leavingEl, {
-        deepWait: true,
-        duration: direction === undefined ? 0 : undefined,
-        direction,
-        showGoBack,
-        progressAnimation
-      });
+      if ((containerEl as any).commit) {
+        return containerEl.commit(enteringEl, leavingEl, {
+          deepWait: true,
+          duration: direction === undefined ? 0 : undefined,
+          direction,
+          showGoBack,
+          progressAnimation
+        });
+      }
     }
     return Promise.resolve(false);
   }