Further simplify fingerprinting on JIRA::HTTPError
Expands on custom fingerprinting added in !28058 (merged).
The message associated with this exception can vary wildly, from a
simple Unauthorized
, to a JSON response object (including an
inconsistent URL and internationalized messages), to the full HTML
response of a misconfigured endpoint. It will never work for
fingerprinting purposes.
See https://sentry.gitlab.net/gitlab/gitlabcom/?query=%22JIRA%3A%3AHTTPError%22 for the problem.