I have deployed a spring boot application in the Kubernetes cluster and configured the Istio controller. When I hit the request from the client, the client sends the content-type header multiple times. But envoy is merging all the duplicate headers into single header with comma-separated values like application/json; charset=UTF-8,application/json; charset=UTF-8,application/json. Because of this header change, application server throws Invalid mime type exception.
To avoid this issue, we need to configure envoy.reloadable_features.http_match_on_all_headers as false.
Ref: https://github.com/istio/istio/issues/30470#issuecomment-774134780 https://www.envoyproxy.io/docs/envoy/latest/version_history/v1.15.1
Can someone guide me on how to configure this property in Istio?
SpringBoot stacktrace:
Exception: class org.springframework.web.HttpMediaTypeNotSupportedException: Invalid mime type "application/json; charset=UTF-8,application/json; charset=UTF-8,application/json": UTF-8,application/json: null: org.springframework.web.HttpMediaTypeNotSupportedException: Invalid mime type "application/json; charset=UTF-8,application/json; charset=UTF-8,application/json": UTF-8,application/json
at org.springframework.web.servlet.mvc.method.RequestMappingInfoHandlerMapping.handleNoMatch(RequestMappingInfoHandlerMapping.java:211)
at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.lookupHandlerMethod(AbstractHandlerMethodMapping.java:422)
at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.getHandlerInternal(AbstractHandlerMethodMapping.java:368)
at org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.getHandlerInternal(AbstractHandlerMethodMapping.java:65)
at org.springframework.web.servlet.handler.AbstractHandlerMapping.getHandler(AbstractHandlerMapping.java:401)
at org.springframework.web.servlet.DispatcherServlet.getHandler(DispatcherServlet.java:1231)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1014)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005)
at org.springframework.web.servlet.FrameworkServlet.doPut(FrameworkServlet.java:919)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:663)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.boot.actuate.web.trace.servlet.HttpTraceFilter.doFilterInternal(HttpTraceFilter.java:90)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:320)
