[CB-9167] Crash when closing InAppBrowser on iOS

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Component/s: cordova-plugin-inappbrowser
• Labels: Triaged iOS
• Assignee: Unassigned
• Reporter: Alfred Olsson
• Created: 12/Jun/15 14:16
• Updated: 23/Aug/18 07:09
• Resolved: 17/Nov/15 10:54

Description

Closing the InAppBrowsers sometimes causes a crash on iOS.

I think the problem is with the UIWebView delegate.

Apple documentation states that the delegate should be set to nil before release but it is not done.

See: https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIWebViewDelegate_Protocol/

The following code in CDVInAppBrowserViewController seems to solve the problem:

-(void)dealloc
{
self.webView.delegate = nil;
}

The crashes are seen in an App that closes the IAB at 'loadstart'.
I think this is required to get the crashes that occur around 1/10 times.

The following error is seen at crashes when Zombie Objects are enabled:

• • • -[CDVWebViewDelegate respondsToSelector:]: message sent to deallocated instance 0x171846e70