feat(flags): capture feature flag evaluations on spans #16485
+941
−72
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Based off https://github.com/getsentry/sentry-python/pull/4280/files
Reopened from #16475
This PR updates our 5 browser FF integrations to capture flag evaluations on spans. This implementation avoids changes to the
Span
class, saving bundle size..on('spanEnd')
hook is used to freeze the flags in the span attributes when the span finishes.flag.evaluation.{flagKey}
From @AbhiPrasad :