In dev mode, Kibana by default runs behind a proxy which adds a random path component to its URL.
You can set this explicitly using
server.basePath. This setting cannot end in a slash (/).
server.rewriteBasePath to tell Kibana if it should remove the basePath from requests it receives, and to prevent a deprecation warning at startup.
If you want to turn off the basepath when in development mode, start Kibana with the
yarn start --no-base-path
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