From 978b14759824a024b85e6f7a10c97418a11eab34 Mon Sep 17 00:00:00 2001
From: Jonathan Li <jonathan_li2000@yahoo.ca>
Date: Mon, 19 Nov 2018 12:28:25 -0500
Subject: [PATCH] Fix iOS CDVWKInAppBrowser evaluateJavascript method randomly
 gets blocked on ios 12 (#341)

### Platforms affected
iOS

### What does this PR do?
fix issue[ #340](https://github.com/apache/cordova-plugin-inappbrowser/issues/340) iOS CDVWKInAppBrowser evaluateJavascript method randomly gets blocked on iOS 12

### What testing has been done on this change?
manual testing

### Checklist
- [x] [Reported an issue](http://cordova.apache.org/contribute/issues.html) in the JIRA database
- [x] Commit message follows the format: "CB-3232: (android) Fix bug with resolving file paths", where CB-xxxx is the JIRA ID & "android" is the platform affected.
- [ ] Added automated test coverage as appropriate for this change.
---
 src/ios/CDVWKInAppBrowser.m | 17 ++---------------
 1 file changed, 2 insertions(+), 15 deletions(-)

diff --git a/src/ios/CDVWKInAppBrowser.m b/src/ios/CDVWKInAppBrowser.m
index 9b515dd04..a952114dd 100644
--- a/src/ios/CDVWKInAppBrowser.m
+++ b/src/ios/CDVWKInAppBrowser.m
@@ -399,30 +399,17 @@ - (void)injectDeferredObject:(NSString*)source withWrapper:(NSString*)jsWrapper
 
 
 //Synchronus helper for javascript evaluation
-
-- (NSString *)evaluateJavaScript:(NSString *)script {
-    __block NSString *resultString = nil;
-    __block BOOL finished = NO;
+- (void)evaluateJavaScript:(NSString *)script {
     __block NSString* _script = script;
-    
     [self.inAppBrowserViewController.webView evaluateJavaScript:script completionHandler:^(id result, NSError *error) {
         if (error == nil) {
             if (result != nil) {
-                resultString = result;
-                NSLog(@"%@", resultString);
+                NSLog(@"%@", result);
             }
         } else {
             NSLog(@"evaluateJavaScript error : %@ : %@", error.localizedDescription, _script);
         }
-        finished = YES;
     }];
-    
-    while (!finished)
-    {
-        [[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate distantFuture]];
-    }
-    
-    return resultString;
 }
 
 - (void)injectScriptCode:(CDVInvokedUrlCommand*)command