There is a lot of interest from developers on this one and from what we learned by analyzing traces, a significant chunk of poor user experience issues could be resolved if it were available. We are eager to make this available, hence the request for a tag review.

cc/ @rmcilroy

Spec: https://w3c.github.io/requestidlecallback/

• outstanding issues
• Blink intent to implement. Implementation status: behind the experimental flag in Chrome 47.
• chromestatus.com entry