vuejs
diff --git a/‎src/reactivity/reactive.ts‎
Lines changed: 1 addition & 1 deletion b/‎src/reactivity/reactive.ts‎
Lines changed: 1 addition & 1 deletion
diff --git a/‎test/ssr/ssrReactive.spec.ts‎
Lines changed: 27 additions & 0 deletions b/‎test/ssr/ssrReactive.spec.ts‎
Lines changed: 27 additions & 0 deletions
@@ -150,7 +150,7 @@ function mockReactivityDeep(obj: any, seen = new Set()) {
     ) {
       continue
     }
-    mockReactivityDeep(value)
+    mockReactivityDeep(value, seen)
   }
 }
 
 
@@ -11,10 +11,14 @@ import {
   isRef,
   set,
   shallowRef,
+  getCurrentInstance,
+  nextTick,
 } from '../../src'
 import { createRenderer } from 'vue-server-renderer'
+import { mockWarn } from '../helpers'
 
 describe('SSR Reactive', () => {
+  mockWarn(true)
   beforeEach(() => {
     process.env.VUE_ENV = 'server'
   })
@@ -118,4 +122,27 @@ describe('SSR Reactive', () => {
     set(state.value, 'new', ref(true))
     expect(JSON.stringify(state.value)).toBe('{"old":false,"new":true}')
   })
+
+  // test the input parameter of mockReactivityDeep
+  it('ssr should not RangeError: Maximum call stack size exceeded', async () => {
+    new Vue({
+      setup() {
+        // @ts-expect-error
+        const app = getCurrentInstance().proxy
+        let mockNt: any = []
+        mockNt.__ob__ = {}
+        const test = reactive({
+          app,
+          mockNt,
+        })
+        return {
+          test,
+        }
+      },
+    })
+    await nextTick()
+    expect(
+      `"RangeError: Maximum call stack size exceeded"`
+    ).not.toHaveBeenWarned()
+  })
 })
Original file line number	Diff line number	Diff line change
@@ -150,7 +150,7 @@ function mockReactivityDeep(obj: any, seen = new Set()) {
150	150	) {
151	151	continue
152	152	}
153		- mockReactivityDeep(value)
	153	+ mockReactivityDeep(value, seen)
154	154	}
155	155	}
156	156