From e4c316a09787f9753c84f495f2dc0e8ab0ae7de0 Mon Sep 17 00:00:00 2001
From: ZZinKin <liao.chaolong.sz@gmail.com>
Date: Mon, 9 Oct 2017 09:50:29 +0800
Subject: [PATCH] solve issue for iOS11, crashes when calling decisionHandler
 twice

---
 WebViewJavascriptBridge/WKWebViewJavascriptBridge.m | 1 +
 1 file changed, 1 insertion(+)

diff --git a/WebViewJavascriptBridge/WKWebViewJavascriptBridge.m b/WebViewJavascriptBridge/WKWebViewJavascriptBridge.m
index 47667df6..73c923db 100644
--- a/WebViewJavascriptBridge/WKWebViewJavascriptBridge.m
+++ b/WebViewJavascriptBridge/WKWebViewJavascriptBridge.m
@@ -147,6 +147,7 @@ - (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigati
             [_base logUnkownMessage:url];
         }
         decisionHandler(WKNavigationActionPolicyCancel);
+        return;
     }
     
     if (strongDelegate && [strongDelegate respondsToSelector:@selector(webView:decidePolicyForNavigationAction:decisionHandler:)]) {