[Webkit-unassigned] [Bug 222801] New: Wrong image displayed for <picture> elements created through JavaScript

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=222801

            Bug ID: 222801
           Summary: Wrong image displayed for <picture> elements created
                    through JavaScript
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: All
                OS: macOS 11
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Images
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: webkit at marvinh.dev

Created attachment 422368

  --> https://bugs.webkit.org/attachment.cgi?id=422368&action=review

HTML file to reproduce the issue

Picture elements that are created in JavaScript and appended to the DOM don't re-evaluate the image source on resize. Instead the initial image, from when the element was attached to the DOM is shown. Changing any attribute on one of the source elements seems to trigger the browser to re-evaluate the image choice and display the correct image.

Check out the attached HTML file for an isolated reproduction case.

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