Open Radar

 
Area:
AVFoundation

Summary: On iOS 11, initializing an AVURLAsset with a URL that will respond with status 403 (I've only tried that status, I don't know about other 4xx status codes), the status on the AVPlayerItem does not change to failed. This is a regression, as in iOS 9 and iOS 10, the AVPlayerItem using that asset would enter the failed state and have a non-nil error (although one with an inscrutable error code). On the iOS 11 simulator, there appears to be a deadlock in the network stack. I've attached the backtrace for that case. On an iOS 11 device, I see the following in the console, but again the AVPlayerItem does not enter the failed state or report an error. The following error appears in the debug console:

2018-04-06 17:04:27.906833-0400 Play One Video[329:44494] CredStore - performQuery - Error copying matching creds.  Error=-25300, query={
    class = inet;
    "m_Limit" = "m_LimitAll";
    "r_Attributes" = 1;
    sync = syna;
}

Steps to Reproduce:
Run attached project. It has a URL that responds with 403.

Expected Results:
An error reflecting HTTP status, but I'd settle for the same error as iOS 9/10:
Error Domain=AVFoundationErrorDomain Code=-11800 "The operation could not be completed" UserInfo={NSLocalizedDescription=The operation could not be completed, NSUnderlyingError=0x14e94230 {Error Domain=NSOSStatusErrorDomain Code=403 "(null)"}, NSLocalizedFailureReason=An unknown error occurred (403)}

(on simulator it's different)
Error Domain=AVFoundationErrorDomain Code=-11800 "The operation could not be completed" UserInfo={NSUnderlyingError=0x7f9aecd8faf0 {Error Domain=NSOSStatusErrorDomain Code=-12643 "(null)"}, NSLocalizedFailureReason=An unknown error occurred (-12643), NSLocalizedDescription=The operation could not be completed}

Actual Results:
Player is dead to me. No way to detect.

Version/Build:
iOS 11.3 (15E216)


Configuration:
Model: iPhone 6s Plus
Version 10.0 (SimulatorApp-851.2 CoreSimulator-518.19)