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https://issues.apache.org/jira/browse/KNOX-3171?focusedWorklogId=976633&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-976633
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ASF GitHub Bot logged work on KNOX-3171:
----------------------------------------
Author: ASF GitHub Bot
Created on: 28/Jul/25 17:26
Start Date: 28/Jul/25 17:26
Worklog Time Spent: 10m
Work Description: Kimahriman commented on PR #1066:
URL: https://github.com/apache/knox/pull/1066#issuecomment-3128258817
> @Kimahriman - I see you modified both 2.7.0 and 3.0.0 too. Does it mean
you tested both versions?
3.0.0 is for the V2 UI, and yeah confirmed it also has the issue and this
also fixes in the same way.
Issue Time Tracking
-------------------
Worklog Id: (was: 976633)
Time Spent: 40m (was: 0.5h)
> YARN proxy rewrite causes issues for Spark 4.0.0 UI
> ---------------------------------------------------
>
> Key: KNOX-3171
> URL: https://issues.apache.org/jira/browse/KNOX-3171
> Project: Apache Knox
> Issue Type: Bug
> Reporter: Adam Binford
> Priority: Major
> Time Spent: 40m
> Remaining Estimate: 0h
>
> Spark UI is not fully functional in 4.0.0 when viewed through the YARN UI
> proxy due to the rewrite rules for proxying adding a trailing slash. Somehow
> this seems to not have caused a problem until now, but there is a new inline
> script that does not function correctly
> Original code:
> ```
> <div class="col-12">
> <div id="active-executors"></div>
> <script type="module"
> src="/proxy/application_1753390029632_0001/static/utils.js"></script>
> <script type="module"
> src="/proxy/application_1753390029632_0001/static/executorspage.js"></script>
> <script type="module">
> import {setThreadDumpEnabled,
> setHeapHistogramEnabled} from
> "/proxy/application_1753390029632_0001/static/executorspage.js";
> setThreadDumpEnabled(true);
> setHeapHistogramEnabled(true)
> </script>
> </div>
> ```
> Knox rewrite:
> ```
> <div class="col-12">
> <div id="active-executors"></div>
> <script type="module"
> src="https://localhost:8443/gateway/sandbox/yarn/proxy/application_1753390029632_0001/static/utils.js/";></script>
> <script type="module"
> src="https://localhost:8443/gateway/sandbox/yarn/proxy/application_1753390029632_0001/static/executorspage.js/";></script>
> <script type="module">
> import {setThreadDumpEnabled, setHeapHistogramEnabled} from
> "https://localhost:8443/gateway/sandbox/yarn/proxy/application_1753390029632_0001/static/executorspage.js";;
> setThreadDumpEnabled(true);
> setHeapHistogramEnabled(true);
> /</script>
> </div>
> ```
> This leads to two errors in the browser console:
> ```
> GET
> https://localhost:8443/gateway/sandbox/yarn/proxy/application_1753390683205_0007/static/executorspage.js/utils.js
> net::ERR_ABORTED 404 (Not Found)Understand this error
> executors/:62 Uncaught SyntaxError: Unexpected end of input (at
> executors/:62:2)
> ```
> The first is because `executorspage.js` has a import from `./utils.js`, so
> some part of that import gets messed up with the trailing slash. The second
> is because of the `/` right before the `</script>` tag that the rewrite rule
> seems to erroneously add. Either way the trailing slashes don't really make
> sense and shouldn't be needed.
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