dosubot[bot] commented on issue #35883: URL: https://github.com/apache/superset/issues/35883#issuecomment-3460553730
<!-- Greeting --> Hi @XiaochuRiver! I'm [Dosu](https://go.dosu.dev/dosubot) and I’m helping the superset team. <!-- Answer --> This is a known bug: when SUPERSET_APP_ROOT (URL_PREFIX) is set, the export (Excel/CSV) URL can get the prefix applied twice, resulting in broken download links and connection errors. The root cause is that the prefix was being added in two places in the frontend export logic. This was fixed in late October 2025—after the 6.0.0rc2 release—by ensuring the prefix is only applied once using a utility function in the frontend code ([details and fix here](https://github.com/apache/superset/pull/35118), [also here](https://github.com/apache/superset/pull/35584)). To resolve this, update to the latest Superset master or a release after October 27, 2025. If you can't upgrade, you would need to manually patch the frontend export logic to avoid double-prefixing, but upgrading is the recommended and safest solution. <!-- Dosu Comment Footer --> *To reply, just mention [@dosu](https://go.dosu.dev/dosubot).* --- <sup>How did I do? [Good](https://app.dosu.dev/response-feedback/3c2554db-d17f-44e2-b8b5-fc0aa0500f18?feedback_type=great_response) | [Irrelevant](https://app.dosu.dev/response-feedback/3c2554db-d17f-44e2-b8b5-fc0aa0500f18?feedback_type=irrelevant_answer) | [Incorrect](https://app.dosu.dev/response-feedback/3c2554db-d17f-44e2-b8b5-fc0aa0500f18?feedback_type=incorrect_sources) | [Verbose](https://app.dosu.dev/response-feedback/3c2554db-d17f-44e2-b8b5-fc0aa0500f18?feedback_type=too_verbose) | [Hallucination](https://app.dosu.dev/response-feedback/3c2554db-d17f-44e2-b8b5-fc0aa0500f18?feedback_type=hallucination) | [Report 🐛](https://app.dosu.dev/response-feedback/3c2554db-d17f-44e2-b8b5-fc0aa0500f18?feedback_type=bug_report) | [Other](https://app.dosu.dev/response-feedback/3c2554db-d17f-44e2-b8b5-fc0aa0500f18?feedback_type=other)</sup> [](https://app.dosu.dev/a28d3c7e-a9d3-459e-9fb6-3a6f9ff4f357/ask?utm_source=githu b) [](https://go.dosu.dev/discord-bot) [](https://twitter.com/intent/tweet?text=%40dosu_ai%20helped%20me%20solve%20this%20issue!&url=https%3A//github.com/apache/superset/issues/35883) -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
