Changes to First Input Delay (FID) metric in Chrome 83

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Annie Sullivan

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Apr 27, 2020, 3:57:31 PM4/27/20

to speed-metri...@chromium.org

Hi everyone,

Chrome 83 went into beta last week, and it contains a bug fix to the First Input Delay (FID) metric, as reported in the Chrome User Experience Report (CrUX). Before Chrome 83, values of FID lower than 1ms were not reported in CrUX. In Chrome 83 and beyond, they will be.

Full details on the changes can be found here.

Please let me know if you have any questions.