187642 2018-07-13 07:31:11 -0700 Videos take ~20s to fallback to another source when HLS source 404's 2022-02-12 18:35:34 -0800 1 1 1 Unclassified WebKit Media Safari 11 Unspecified Unspecified RESOLVED CONFIGURATION CHANGED http://jsfiddle.net/p4u5oLva/8/ InRadar P2 Normal --- 1 newmuis webkit-unassigned bfulgham eric.carlson jeremyj-wk jer.noble newmuis webkit-bug-importer oldest_to_newest 1441857 0 newmuis 2018-07-13 07:31:11 -0700 This is a video tag with an MP4 source that fails and falls back to another MP4 source: http://jsfiddle.net/p4u5oLva/9/ When loaded in Safari, it requests the fallback video immediately after the first source fails. This is a video tag with an HLS source that fails and falls back to another MP4 source: http://jsfiddle.net/p4u5oLva/8/ When loaded in Safari, it requests the fallback video 20 seconds after the first source fails. Tested with Safari 11.1 (13605.1.33.1.2). 1442089 1 webkit-bug-importer 2018-07-13 16:11:09 -0700 <rdar://problem/42185335> 1840774 2 bfulgham 2022-02-12 18:35:34 -0800 WebKit QA confirmed this is resolved, most likely in AVFoundation.