From bb80b61c3ce8e3f6a944d25ca48a7c04131ca508 Mon Sep 17 00:00:00 2001
From: Prasanth <kesavarapu.siva@gmail.com>
Date: Wed, 19 Dec 2018 20:29:55 +0530
Subject: [PATCH] fixes #9224 Warn when the type of a prop isn't a constructor

---
 src/core/util/props.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/core/util/props.js b/src/core/util/props.js
index 1b57f77cdb5..63625b8700b 100644
--- a/src/core/util/props.js
+++ b/src/core/util/props.js
@@ -165,8 +165,10 @@ function assertType (value: any, type: Function): {
     valid = isPlainObject(value)
   } else if (expectedType === 'Array') {
     valid = Array.isArray(value)
-  } else {
+  } else if (type.prototype instanceof Object){
     valid = value instanceof type
+  } else {
+    valid = false
   }
   return {
     valid,