gzipping content in Jetty seems to actually break any emojis on an HTML page? At least it does in my case. Kind of strange.

Actually, scratch that, it seems that the issue is somehow Docker-related. Weird.

@simongray hm, I ran into an issue that the JVM uses by default the platform encoding. Best to set it explicitly via a Java system property.

Something like -Dfile.encoding=UTF-8