[API] CORS: 500 response for OPTIONS request on Chrome. Tracks unplayable.

Originator:brodlum
Number:rdar://50513079 Date Originated:06-05-2019
Status:Created Resolved:
Product:Musickit JS Product Version:1.5.2-0
Classification: Reproducible:Always
 
Summary:
Users unable to play tracks via Musickit JS on Chrome browser (tested on version 74.0.3729.131, other reports too) after user is authenticated.

Browser console reports a 500 response from the OPTIONS request made as a preflight on the *.aac.wa.mp4 request from the Apple Music API.


Steps to Reproduce:
1: Open Chrome.
2: Browse to a MusicKit-enabled service (https://musi.sh/ or https://tools.applemusic.com/).
3: Authenticate with Apple Music.
4: Attempt to play any track.
5: Observe response in developer tools.


Expected Results:
- Track should begin to play.
- No 500 error response on preflight.


Actual Results:
- Track does not play.
- 500 error response on preflight.


Version/Build:
1.5.2-0


Configuration:
N/a

Comments


Please note: Reports posted here will not necessarily be seen by Apple. All problems should be submitted at bugreport.apple.com before they are posted here. Please only post information for Radars that you have filed yourself, and please do not include Apple confidential information in your posts. Thank you!