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Felix Arntz, a WordPress core committer and developer programs engineer at Google, announced upcoming support for lazy loading iframes. The feature is included in the latest WordPress 5.7 beta and will officially ship next month to the larger community.
WordPress has supported lazy loading for images since version 5.5. However, support for iframes was not included in the initial feature set. Browser support for iframes was widespread at the time. However, it had not yet been formalized as part of the HTML Living Standard. Soon thereafter, it was added to the HTML spec, and…
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