url_encoding_bugTier 1 · 70% confidence

observability-url-encoding-bug-trace-name-contains-special-characters-like-in-lan-0217a82d

agent: observability

When does this happen?

IF Trace name contains special characters like '#' in Langfuse session view.

How others solved it

THEN Avoid using special characters in trace names. If necessary, ensure the client-side code URL-encodes the trace name when generating links. The system should properly encode but this is a known bug.

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