<h2 id="heading-issue">Issue</h2>
<p>User cannot access NiFi UI from Knox Web UI with these error messages:</p>
<p><img src="https://cdn.hashnode.com/res/hashnode/image/upload/v1711464337297/cc153ffc-cd9a-4e74-ace4-5a1d67963265.png" alt class="image--center mx-auto" /></p>
<pre><code class="lang-bash">An unexpected error has occurred

{<span class="hljs-string">"cause0"</span>:<span class="hljs-string">"javax.ws.rs.core.UriBuilderException: The provided context path [/gateway/cdp-proxy/nifi-app] was not registered as allowed []"</span>,<span class="hljs-string">"message"</span>:<span class="hljs-string">"javax.ws.rs.core.UriBuilderException: The provided context path [/gateway/cdp-proxy/nifi-app] was not registered as allowed []"</span>,<span class="hljs-string">"url"</span>:<span class="hljs-string">"/nifi-api/flow/current-user"</span>,<span class="hljs-string">"status"</span>:<span class="hljs-string">"500"</span>}
</code></pre>
<h2 id="heading-caused">Caused</h2>
<p>"The provided context path [/gateway/cdp-proxy/nifi-app] was not registered as allowed []"</p>
<h2 id="heading-resolution">Resolution</h2>
<p>In <code>NiFi &gt; Configuration &gt; nifi.web.proxy.context.path</code>, replace default value with <code>/gateway/cdp-proxy/nifi-app</code> and restart all NiFi server</p>
<h2 id="heading-references">References</h2>
<ul>
<li><a target="_blank" href="https://issues.apache.org/jira/browse/NIFI-9469">https://issues.apache.org/jira/browse/NIFI-9469</a></li>
</ul>


## Issue

User cannot access NiFi UI from Knox Web UI with these error messages:

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1711464337297/cc153ffc-cd9a-4e74-ace4-5a1d67963265.png align="center")

```bash
An unexpected error has occurred

{"cause0":"javax.ws.rs.core.UriBuilderException: The provided context path [/gateway/cdp-proxy/nifi-app] was not registered as allowed []","message":"javax.ws.rs.core.UriBuilderException: The provided context path [/gateway/cdp-proxy/nifi-app] was not registered as allowed []","url":"/nifi-api/flow/current-user","status":"500"}
```

## Caused

"The provided context path \[/gateway/cdp-proxy/nifi-app\] was not registered as allowed \[\]"

## Resolution

In `NiFi > Configuration > nifi.web.proxy.context.path`, replace default value with `/gateway/cdp-proxy/nifi-app` and restart all NiFi server

## References

* [https://issues.apache.org/jira/browse/NIFI-9469](https://issues.apache.org/jira/browse/NIFI-9469)

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Knox: Unable to access NiFi Service from Knox UI

Issue

Caused

Resolution

References