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  1. Apache Cordova
  2. CB-11897

cordova-plugin-wkwebview-engine crashes app on startup if Safari is set to "Automatically Show Web Inspector for JSContexts"

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      Description

      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:

      testApp(3824,0x1ae6eec40) malloc: *** error for object 0x1700a7e60: pointer being freed was not allocated

          • set a breakpoint in malloc_error_break to debug

      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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            • Assignee:
              shazron Shazron Abdullah
              Reporter:
              bradr Brad Reynolds
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