Merge pull request #2265 from nicholaspufal/fix-navigation-error

Fix history state errors

Author: joetannenbaum

packages/core/src/history.ts

@@ -119,6 +119,10 @@ class History {
   public saveDocumentScrollPosition(scrollRegion: ScrollRegion): void {
     queue.add(() => {
       return Promise.resolve().then(() => {
+        if (!window.history.state?.page) {
+          return
+        }
+
         this.doReplaceState(
           {
             page: window.history.state.page,
@@ -131,11 +135,11 @@ class History {
   }
 
   public getScrollRegions(): ScrollRegion[] {
-    return window.history.state.scrollRegions || []
+    return window.history.state?.scrollRegions || []
   }
 
   public getDocumentScrollPosition(): ScrollRegion {
-    return window.history.state.documentScrollPosition || { top: 0, left: 0 }
+    return window.history.state?.documentScrollPosition || { top: 0, left: 0 }
   }
 
   public replaceState(page: Page, cb: (() => void) | null = null): void {