Websocket checkStartsWith doesn't work as expected

Expected behavior

The websocket checkStartsWith (#10583) feature should support all of the following URLs:

• /
• /?param
• /subPath
• /subPath?param

Actual behavior

No matter whether you set it to true/false it only supports the websocket path itself with:

• /
• /?param

Steps to reproduce

Modify the websocket server example to set this config param?

Minimal yet complete reproducer code (or URL to code)

https://github.com/netty/netty/blob/4.1/example/src/main/java/io/netty/example/http/websocketx/server/WebSocketServerInitializer.java

change applicable line to:

pipeline.addLast(new WebSocketServerProtocolHandler(WEBSOCKET_PATH, null, true, 65555, false, true));

// and also test

pipeline.addLast(new WebSocketServerProtocolHandler(WEBSOCKET_PATH, null, true, 65555, false, false));

Netty version

4.1.53.Final

JVM version (e.g. java -version)

JDK 11

OS version (e.g. uname -a)

10.14.x

[travishaagen]

Verified fix with 4.1.54.Final release. Thank you for taking a look @Doyuni

[travishaagen]

Apologies for the delay. Please give me a chance to verify on Monday, after the US holiday.