20470288: Crash occurred in Webkit while loading content in web view

[openradar-mirror]

Description

Crash occurred in Webkit framework while loading content in web view. There was an alert view presented on the controller and when the user hit retry option on the alert, web view tries to load the webpage and crash happened when loading the webpage.

Stack Trace:

"StackTrace" : [
"#2 libsystem_platform.dylib 0X3449E0A3 _sigtramp()",
"#3 WebCore 0X31A3B7DB ()",
"#4 WebCore 0X31A3B7DB ()",
"#5 WebCore 0X31803797 ()",
"#6 WebCore 0X31803375 ()",
"#7 WebCore 0X31802DCD ()",
"#8 WebCore 0X3182A01F ()",
"#9 WebCore 0X31829F3D _ZN7WebCore11FrameLoader4loadERKNS_16FrameLoadRequestE()",
"#10 WebKitLegacy 0X32318253 -[WebFrame _loadData:MIMEType:textEncodingName:baseURL:unreachableURL:]",
"#11 WebKitLegacy 0X32318555 -[WebFrame loadData:MIMEType:textEncodingName:baseURL:]",
"#12 UIKit 0X29B1F255 ()",
"#13 WebCore 0X32180FF9 ()",
"#14 CoreFoundation 0X262D4FD7 ()",
"#15 CoreFoundation 0X262D43EB ()",
"#16 CoreFoundation 0X262D2A69 ()",
"#17 CoreFoundation 0X2621FB31 CFRunLoopRunSpecific()",
"#18 CoreFoundation 0X2621F943 CFRunLoopRunInMode()",
"#19 WebCore 0X317E4819 ()",
"#20 libsystem_pthread.dylib 0X344A2E67 ()",
"#21 libsystem_pthread.dylib 0X344A2DDB _pthread_start()",
"#22 libsystem_pthread.dylib 0X344A0B84 thread_start()"
]

Steps to Reproduce:
No specific workflow found

Expected Results:
Crash shouldn't occur while loading content in web view ever

Actual Results:
Crash occurs while loading content in web view rarely

Version:
iOS 8.1.3

Notes:

Configuration:
iPad

Product Version: 8.1.3
Created: 2015-04-08T19:28:36.122742
Originated: 2015-04-08T00:00:00
Open Radar Link: http://www.openradar.me/20470288