I got an error: "client sent invalid header line while reading client request headers" when I pass some of ios-8859-1 encoded chinese words in http header value。 but I dont know why？ and I dont know which ios-8859-1 char can not set in http header values？ who can tell me the reason？

the error code example（in java）：
String chineseWords = “一”；
String headerValue = new String(chineseWords.getBytes("utf-8"), "ISO-8859-1")；

the http requeset as follow：

GET /EurekaApp/v1/test
Accept: application/json
X-Biz-Id: ${headerValue｝

then nginx will return 400 code.

Most Chinese characters are good, only a few get 400



Edited 2 time(s). Last edit at 05/31/2022 05:45AM by lchpersonal.