Featured image link not working without heartbeat API
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When the hearbeat API is disabled on the post editing page, clicking the link to set a featured image does not work.
On shared hosting systems, the frequent AJAX calls create unnecessary load and there are many on the web who support disabling the heartbeat API to get around this problem, thinking it’s all about autosave and post locking, but managing featured images is not something that can just go missing.
Is there some way to keep managing featured images with heartbeat turned off?
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