08:59
<Ashley Claymore>
the topic of checking web compatibility of new proposals came up recently. Am I right in thinking some browsers in the past tried to track this at runtime by placing a hidden 'hook' that could see if certain props were accessed? Or was that something from a dream?
09:16
<nicolo-ribaudo>
That was not a dream, if I recall correctly Firefox calls them "Use Counters"
09:17
<nicolo-ribaudo>
https://firefox-source-docs.mozilla.org/toolkit/components/telemetry/collection/use-counters.html
09:18
<Luca Casonato>
An example of a recent CL adding a use counter to Chromium: https://chromium-review.googlesource.com/c/chromium/src/+/3423793
10:22
<Ashley Claymore>
thanks both! Much appreciated