In x/text in Go 1.15.4, an "index out of range" panic occurs in language.ParseAcceptLanguage while parsing the -u- extension. (x/text/language is supposed to be able to parse an HTTP Accept-Language header.)
{ "availability": "No subscription required", "ubuntu_priority": "low", "binaries": [ { "binary_version": "0.0~git20170627.0.6353ef0-1ubuntu2.1", "binary_name": "golang-golang-x-text-dev" }, { "binary_version": "0.0~git20170627.0.6353ef0-1ubuntu2.1", "binary_name": "golang-x-text-dev" } ] }