How to disable HTTP/2 while still keeping HTTPS (TLS) on WildFly 13?

[george.labuschagne]

Hi all

Is it possible to disable HTTP/2 while still keeping HTTPS (TLS CA provided certificate)?

Kind regards,

George

[lafr]

Hi George,

Yes, you can.

When your jboss instance is down, you can edit your config file. Search for this line:

https-listener name="https" socket-binding="https" security-realm="ApplicationRealm" enable-http2="true"/>

and set enable-http2 to false.

Else use the Web-Console:

Regards, Frank

[fjuma]

It is possible to disable HTTP/2 using the following command:

/subsystem=undertow/server=default-server/https-listener=https:write-attribute(name=enable-http2,value=false)

[george.labuschagne]

Good day Frank and Farah

Thanks so much for your replies, it is most appreciated. Disabling HTTP/2 temporarily solved this issue (the HTTP/2 only broke after moving to Java EE 8 preview mode in preparation for the Java 11 LTS release coming up):

macos - SOLVED - Site rendering broken on iOS and Mac OSX after moving to JDK 10 and JSF 2.3 - Stack Overflow

Please if possible could you comment on that question?

Also, I feel bad that I can assign only one 'correct answer' to these both technically correct answers.

However the server being web facing has the web interface for admin not available (port is closed), so I could only apply Farah's solution via the CLI.

But thanks for taking the time to respond first and for placing a screenshot, it is most appreciated.

Kind regards,

George