whatwg/html
Unclear if error event from "update the image data" matches implementations
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#3,839 opened on 2018/07/22
good first issuetopic: img
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説明
Attempting to verify the behaviour of step 10 of update the image data, I ran this test in Firefox, Safari, and Chrome on macOS. Each browser only displayed "error1". As far as I can tell img elements with either a srcset attribute or a picture parent should cause the algorithm to be invoked, and then end up with a null selected source. This doesn't appear to match the behaviour of any browser I've tried, however.
cc @zcorpan