Does opentracing_trust_incoming_span erase baggage?

[james-callahan]

When setting opentracing_trust_incoming_span=false, does baggage get erased?
I couldn't see any code to do so (but I haven't tested).

Otherwise the potential issue is that an upstream will think that baggage is being added by nginx itself.

[miry]

@james-callahan Do you have an example how we can reproduce the problem?

[james-callahan]

Do you have an example how we can reproduce the problem?

I would verify it by:

• Setting up an nginx configured to use jaeger, set opentracing_trust_incoming_span=false
• Send a request to nginx with a baggage header set, e.g. uberctx-foo: bar
• Check if that header made it through to the upstream service. It shouldn't