Automatic context propagation stops working after an error occurrs

[surmabck]

Expected Behavior

I believe WebFilters should have auto context propagation regardless if error occurred or not.

Actual Behavior

Automatic context propagation enabled via Hooks.enableAutomaticContextPropagation(); stops working when error was being handled in WebFilter. Once error is caught, all further WebFilters are going to be stripped of MDC context.

Reproductor

I've prepared reproducer here -> https://github.com/surmabck/spring-boot-3xx-micrometer-issues/tree/only-reactor

[chemicL]

Thanks @surmabck for the report with a reproducer.

I ran the example and here's what I observed:

If I make a request to /failing but afterwards make a request to /helloWorld then the tracing information is present in the /helloWorld handling.

My understanding is that the Observation is not attached to the reactive chain following a trigger of your WebExceptionHandler. Please report it against spring-framework.