dosubot[bot] commented on issue #25561: URL: https://github.com/apache/superset/issues/25561#issuecomment-3145786673
<!-- Answer --> The root cause is the frontend’s aggressive HTML detection logic: any string with angle brackets (like `<abcdef:12345>`) is classified as HTML by the isProbablyHTML function, even if it’s not valid HTML. When this happens, Superset tries to render it as HTML using dangerouslySetInnerHTML, but browsers ignore unknown tags, so nothing appears in the cell. This is why toggling the “Render HTML” option doesn’t fix the issue—the detection logic still treats these strings as HTML and hides them, regardless of the toggle’s state. The relevant code is in superset-frontend/packages/superset-ui-core/src/utils/html.tsx and is global and hardcoded, so there’s no user-facing way to adjust this behavior without a code change. See [this related issue and explanation](https://github.com/apache/superset/issues/34082). Workarounds include disabling HTML rendering for affected columns (where possible) or preprocessing your data to escape angle brackets (replace `<` with `<` and `>` with `>`). To truly fix this, the detection logic in isProbablyHTML would need to be refined to better distinguish between actual HTML and plain strings with angle brackets. No recent PRs address this yet. <!-- 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/d628baeb-5732-4539-ae69-df2fed9f19fd?feedback_type=great_response) | [Irrelevant](https://app.dosu.dev/response-feedback/d628baeb-5732-4539-ae69-df2fed9f19fd?feedback_type=irrelevant_answer) | [Incorrect](https://app.dosu.dev/response-feedback/d628baeb-5732-4539-ae69-df2fed9f19fd?feedback_type=incorrect_sources) | [Verbose](https://app.dosu.dev/response-feedback/d628baeb-5732-4539-ae69-df2fed9f19fd?feedback_type=too_verbose) | [Hallucination](https://app.dosu.dev/response-feedback/d628baeb-5732-4539-ae69-df2fed9f19fd?feedback_type=hallucination) | [Report 🐛](https://app.dosu.dev/response-feedback/d628baeb-5732-4539-ae69-df2fed9f19fd?feedback_type=bug_report) | [Other](https://app.dosu.dev/response-feedback/d628baeb-5732-4539-ae69-df2fed9f19fd?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/25561) -- 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]
