Created attachment 462146 [details]
To reproduce: Open the testcase file in Safari on a 2x DPR or higher display.
Expected: Both images load the same URL.
Actual: The first image loads the correct URL. The second image (copied from `new DOMParser().parseFromString`) incorrectly loads the first URL from its srcset.
This might be the same root cause as bug 211620.
Chrome and Firefox both display the expected outcome: same 2x image.
This is a duplicate of the bug 211620.
*** This bug has been marked as a duplicate of bug 211620 ***