WKWebView can't access local videos after given read access

Originator:sam.lu
Number:rdar://24281904 Date Originated:January 21, 2016
Status:Duplicate/24281444 Resolved:
Product:iOS SDK Product Version:iOS 9.1
Classification:Other Bug Reproducible:Always
 
Summary:
A sample Xcode project is provided to reproduce the issue. As mentioned in title, WKWebView seems unable to access local video files after granting read access. Weirder – it does work if ​*any*​ video has first been played in UIWebView

Steps to Reproduce:
1) Run the attached project on an iPad in landscape. 
2) The top half is a WKWebView and bottom half is UIWebview.  If you scroll the top web view you will see a few videos.  Trying playing them and they will fail and have a strike through even though read access has been given in code. 
3) kill the app and run it again,
4) now tap one of the upper videos to get the failed play, then tap one of the videos on the bottom UIWebview which will play.  
5) after playing a video in the UIWebView then go back up to the WKWebview and tap the second video which will now play.

Expected Results:
WKWebView should be able to access local video files and not have to use UIWebView as a workaround

Actual Results:
An instance of WKWebView was unable to access a local video file

Comments

Received comment from Apple acknowledging duplicate issue

03-Feb-2016 11:48 PM

Engineering has determined that your bug report is a duplicate of another issue and will be closed.

The open or closed status of the original bug report your issue was duplicated to appears in the yellow "Duplicate of XXXXXXXX" section of the bug reporter user interface. This section appears near the top of the right column's bug detail view just under the bug number, title, state, product and rank.

If you have any questions or concerns, please update your report directly here: http://bugreport.apple.com/.

By sam.lu at June 17, 2016, 3:47 p.m. (reply...)

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