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Changes between Initial Version and Version 1 of Ticket #52990, comment 8

initial	v1
5	5	On the other hand the WordPress editor (both the block editor and TinyMCE) normalize HTML attributes to always use double quotes. The "template functions" also output HTML with double quotes.
6	6
7		Yes, the conditional where the quote is checked can have false positives. It's purpose is to bypass adding of the `loading` attribute, i.e. if `src`, `width`, or `height` are missing or in case of a false positive it falls back to the "safe" option of not changing the tag.
	7	Yes, the conditional where the quote is checked can have false positives. Its purpose is to bypass adding of the `loading` attribute, i.e. if `src`, `width`, or `height` are missing or in case of a false positive it falls back to the "safe" option of not changing the tag.
8	8
9	9	At the time #44427 was implemented it seemed that the slowdown of getting the quote style for each image would have larger negative impact than not adding the `loading` attribute when the tags attributes are with single quotes or no quotes.