21266722: The app starts with a webview. The app crashed when launched

[openradar-mirror]

Description

Summary:
The app has a WebView that loads our login page when launched. The app crashed with SIGSEGV - segmentation violation when launched after updated from app store.
{
"StackTrace" : [
"#0 MyApp 0X0012C6D5 +[Logging signalHandler:]",
"#1 MyApp 0X000E6AA5 -[NSURL portByScheme]",
"#2 libsystem_platform.dylib 0X398DF87B _sigtramp()",
"#3 libsystem_blocks.dylib 0X397BAAE1 _Block_release()",
"#4 libsystem_blocks.dylib 0X397BAAE1 _Block_release()",
"#5 CoreFoundation 0X2B732DE3 ()",
"#6 CoreFoundation 0X2B69DFA3 CFRelease()",
"#7 CFNetwork 0X2B1F6E15 ()",
"#8 CFNetwork 0X2B1F6CCD ()",
"#9 CFNetwork 0X2B1F6B61 ()",
"#10 CoreFoundation 0X2B75DD57 ()",
"#11 CoreFoundation 0X2B75D167 ()",
"#12 CoreFoundation 0X2B75B7CD ()",
"#13 CoreFoundation 0X2B6A93C1 CFRunLoopRunSpecific()",
"#14 CoreFoundation 0X2B6A91D3 CFRunLoopRunInMode()",
"#15 WebCore 0X36CF8903 ()",
"#16 libsystem_pthread.dylib 0X398E2E93 ()",
"#17 libsystem_pthread.dylib 0X398E2E07 _pthread_start()",
"#18 libsystem_pthread.dylib 0X398E0B90 thread_start()"
]
}

Steps to Reproduce:

1. Launch an app that starts with a webview that loads a URL.
2. App crash immediately.

Expected Results:
The app shouldn't crash.

Actual Results:
The app crashed with SIGSEGV - segmentation violation.

Version:
iPhone OS Version 8.1.2 (Build 12B440)

Notes:

Configuration:
iPad4,4, Using WiFi

Product Version: iPhone OS Version 8.1.2 (Build 12B440)
Created: 2015-06-05T21:45:37.640070
Originated: 2015-06-05T16:40:00
Open Radar Link: http://www.openradar.me/21266722