Author

Felix Hanau <felix@cloudflare.com> 2026-04-07 21:08:11 +0000

Parents

5ebf51c

Tree

c44b2a1

[o11y] Fix tail worker test with unstable and incomplete outcome

images-api-instrumentation-test uses traceId as its span identification key,
which does not uniquely identify spans (unlike spanId). This led to us missing
out on spans reported under the same traceId, having span tags be assigned to
the wrong span, and changed the test results when reporting span tags earlier,
falsely creating the impression that #6051 would introduce span reporting bugs.
This can be avoided by using the same tail handler that similar tests already
use.