Eric Porter created NIFI-9469:
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Summary: Context path issue when NiFi is served behind proxy server
Key: NIFI-9469
URL: https://issues.apache.org/jira/browse/NIFI-9469
Project: Apache NiFi
Issue Type: Bug
Components: Configuration
Affects Versions: 1.15.0
Environment: CentOS 7, openjdk version "1.8.0_312"
Reporter: Eric Porter
After upgrading to NiFi 1.15.0 we noticed that we could no longer reach nifi on
the root context path. The error we were seeing follows:
{code:java}
javax.ws.rs.core.UriBuilderException: The provided context path [/] was not
registered as allowed [[]] {code}
Our nifi.web.proxy.context.path was set to:
{code:java}
nifi.web.proxy.context.path=/{code}
To troubleshoot, we added /nifi to the nifi.web.proxy.context.path property and
changed our X-ProxyContextPath proxy setting to "/nifi" and found that we could
load nifi.
{code:java}
nifi.web.proxy.context.path=/nifi,/
X-ProxyContextPath "/"{code}
However, leaving X-ProxyContentPath set to "/" and setting
nifi.web.proxy.context.path=/,/nifi resulted in the same error, but helped us
to discover that there seems to be an issue with parsing the single '/'
character from the nifi.web.proxy.context.path setting.
{code:java}
javax.ws.rs.core.UriBuilderException: The provided context path [/] was not
registered as allowed [[/nifi, ]] {code}
After trying different escaping methods, were able to work around this issue by
using the following setting:
{code:java}
nifi.web.proxy.context.path=// {code}
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