[Webkit-unassigned] [Bug 208857] New: Video play() works on ios 13 but throw error on ios 12.4.1

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=208857

            Bug ID: 208857
           Summary: Video play() works on ios 13 but throw error on ios
                    12.4.1
           Product: WebKit
           Version: Safari 12
          Hardware: iPhone / iPad
                OS: iOS 12
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Media
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: susiwen8 at gmail.com

I have a page which will play video automatically, but Safari will throw a error: 'Unhandled Promise Rejection: AbortError: The operation was aborted', I know Safari restricts on video play, but video plays on ios13

https://zhidao.baidu.com/question/1674951949108994147.html

This is the page, click on image will play first video, scroll down to next video, on ios13, next video will play, but on ios12.4.1, it will throw error which I have mentioned above.

Could someone tell me how this happened, why there is a difference.

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