oscerd opened a new pull request, #25414: URL: https://github.com/apache/camel/pull/25414
## Description The 4.14, 4.18 and 4.21 upgrade guides each describe CAMEL-23588 as making `UndertowHeaderFilterStrategy` filter the legacy `websocket.*` Exchange-header prefix at the undertow transport boundary, and present that behaviour as shipped in 4.14.8, 4.18.3 and 4.21.0 respectively. It was not. `UndertowEndpoint` defaulted its `headerFilterStrategy` to the base `HttpHeaderFilterStrategy` and pushed that into the `UndertowHttpBinding` it creates lazily, overwriting the `UndertowHeaderFilterStrategy` the binding installs in its own constructor. On endpoint-configured routes the undertow-specific filtering never executed. CAMEL-24360 (#25367) fixed the wiring in 4.14.9 / 4.18.4 / 4.22.0. ## Why this matters | Guide | Currently claims | Actually took effect | |---|---|---| | `4_14` | active in 4.14.8 | 4.14.9 | | `4_18` | active in 4.18.3 | 4.18.4 | | `4_21` | active in 4.21.0 | 4.22.0 | The 4.14, 4.18 and 4.22 guides already carry the `camel-undertow - UndertowHeaderFilterStrategy is now the endpoint default` entry from the CAMEL-24360 doc-sync, so a careful reader there could piece it together. **The 4.21 guide had no correction at all** — someone running 4.21.0 and reading that guide would believe `websocket.*` was being filtered at the undertow boundary when it never was. ## Changes A `[NOTE]` admonition at the top of each of the three sections, naming the mechanism and pointing at the entry that fixes it (in-file for 4.14 / 4.18, forward to the 4.22 guide for 4.21). All three referenced anchors were verified to resolve. Documentation only, no behaviour change. ## Testing Full reactor build from root (`mvn clean install -DskipTests`) green, no regenerated-artifact drift. --- _Claude Code on behalf of oscerd_ -- 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]
