Dev Tools console not maintaining prefix_path v8.12.2

[B_Blank]

I'm seeing in Kibana 8.12.2 that the prefix_path is being dropped by Dev Tools Console commands.
i.e. the "/kibana" in the example below.

kibana.yml

elasticsearch.hosts: "server.mydomain.com:443/kibana

In Dev Tools Console:

v7.17.15 (correct)
GET _cluster/health produces GET /kibana/_cluster/health?pretty=true

v8.12.2 (incorrect)
GET _cluster/health produces GET /_cluster/health?pretty=true

I am obviously running kibana behind a proxy. All other apps in Kibana appear to be working fine, only Dev Tools Console seems to have an issue so far.

I've tried every combination in the kibana.yml file of:

server.publicBaseUrl: "https://server.mydomain.com/kibana"
server.basePath: /kibana
server.rewriteBasePath: false

[B_Blank]

Workaround: For my use case, I am able to update the root route in my proxy and direct the traffic to the /kibana endpoint. (but I don't think we should have to do this.)

[tsullivan (Tim Sullivan)]

It would be worth filing a bug in the Kibana Github repo. See https://github.com/elastic/kibana/issues/new

[B_Blank]

Will do - just wanted to confirm it was an issue before creating a "bug". Thanks.

[B_Blank]

@B_Blank

Workaround: For my use case, I am able to update the root route in my proxy and direct the traffic to the /kibana endpoint.

Dev Tools console not maintaining prefix_path v8.12.2