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From "Brad Reynolds (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CB-11897) cordova-plugin-wkwebview-engine crashes app on startup if Safari is set to "Automatically Show Web Inspector for JSContexts"
Date Fri, 23 Sep 2016 19:54:22 GMT
Brad Reynolds created CB-11897:
----------------------------------

             Summary: cordova-plugin-wkwebview-engine crashes app on startup if Safari is
set to "Automatically Show Web Inspector for JSContexts" 
                 Key: CB-11897
                 URL: https://issues.apache.org/jira/browse/CB-11897
             Project: Apache Cordova
          Issue Type: Bug
          Components: iOS, Plugin WKWebViewEngine
    Affects Versions: 1.1.0
         Environment: iOS
            Reporter: Brad Reynolds
            Assignee: Shazron Abdullah


If in Safari the Simulator/iPhone is set to automatically show web inspector when the cordova-plugin-wkwebview-engine
is in use the app will crash on startup.

Versions: 
Safari: 10.0 (12602.1.50.0.10)
OS X: 10.12 (16A323)
Xcode: 8.0 (8A218a)
Cordova: 6.3.1
Cordova WebKit Engine: 1.1.0

To repro:
1. Create a new test app and add the cordova-plugin-wkwebview-engine plugin to it.
2. Open the iOS project in Xcode.
3. Run the Simulator.

If it didn't crash:
4. In Safari go to Develop->Simulator->Automatically Show Web Inspector for JSContexts
and ensure it's checked.
5. Restart the app in Xcode.  It should crash.

The output in Xcode will be something like:
{quote}
testApp(3824,0x1ae6eec40) malloc: *** error for object 0x1700a7e60: pointer being freed was
not allocated
*** set a breakpoint in malloc_error_break to debug
{quote}

I spent most of the day trying to repro this consistently because I was seeing the crash on
my iPhone but not in the Simulator.  Once I realized it was this setting I'm able to reproduce
it consistently on both.

Also if you remove the CordovaWebViewEngine preference that is set to CDVWKWebViewEngine the
app will not crash.



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