I'm experiencing the same issue with running Docker 2 instances either locally on my laptop and on AWS. Due to dockers setup, there should be some way to pass a startup parameter to: - disable request header check Locally Docker Nifi instance 1 : nifi1 on port 8080 is ok whilst on port 8090, where docker redirects, this fails. This has stopped my current development. Running a single instance without docker on AWS also generates this issue.
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