For a few rationale, the Model of your eureka discovery consumer is not really included instantly to the pom when utilizing the spring initializr so as to add the spring-boot-starter. So I added the Model manually: Even though you are employing nocache, the ETag header is just not removed, as https://modernbookmarks.com/story20767894/5-simple-statements-about-%E3%82%AA%E3%83%B3%E3%83%A9%E3%82%A4%E3%83%B3-%E3%82%AB%E3%82%B8%E3%83%8E-%E4%BB%AE%E6%83%B3%E9%80%9A%E8%B2%A8-explained