Closed kptdobe closed 3 years ago
The doc states:
there are a few good reasons to consider using the "base+polyfill" version, for example:
- FID can be measured in all browsers.
- CLS, FCP, FID, and LCP will be more accurate in some cases (since the polyfill detects the page's initial visibilityState earlier).
So apparently, it is worth using it everywhere.
Declined by @davidnuescheler: we should not change the head.html
.
No tracking data are sent from Safari: the polyfill is needed to track the FID, other metrics cannot be tracked (yet).