perf($MultiWindow): use optional chain to avoid error

johnnymillergh · Feb 5, 2020 · fb54364 · fb54364
1 parent 3aa0c9a
commit fb54364
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/mixin/multi-window.ts b/src/mixin/multi-window.ts
@@ -74,7 +74,7 @@ export class MultiWindow extends Vue {
   }
 
   windowBack (argument?: any): void {
-    const context = window.opener.$vue
+    const context = window?.opener?.$vue
     const callback = this.$data.$multiWindowOptions.callback
     const delayClosingWindow = this.$data.$multiWindowOptions.delayClosingWindow
     if (!context) {