Any way to get Stan 4K?

[CrymanChen]

Tried to access an Stan API and get the 4K contents on it.
But an error triggered each time when I clicked the Play button.

The screenshot of Stan in my Chrome.

[Attachment 69725 - Click to enlarge]

Just to post to find out if there's any way or solution to get the 4K videos on PC

[CrymanChen]

P.S. Login went normal and nothing wrong, only when I tried to stream the videos.

And "allow to load insecure content" enabled.

[CrymanChen]

[Attachment 69726 - Click to enlarge]

4K is L1-protected, but why cannot stream the 1080p ones.