add docs

proxy/reqheader.go

@@ -17,33 +17,3 @@ func removeWSHeader(req *http.Request) {
 	req.Header.Del("Upgrade")
 	req.Header.Del("Connection")
 }
-
-/*
-func reWriteEncodeHeader(req *http.Request) {
-
-	if isGzipAccepted(req.Header) {
-		req.Header.Set("Content-Encoding", "gzip")
-		req.Header.Set("Accept-Encoding", "gzip")
-	} else {
-		req.Header.Del("Content-Encoding")
-		req.Header.Del("Accept-Encoding")
-	}
-
-}
-
-// isGzipAccepted 检查 Accept-Encoding 头部中是否包含 gzip
-func isGzipAccepted(header http.Header) bool {
-	// 获取 Accept-Encoding 的值
-	encodings := header["Accept-Encoding"]
-	for _, encoding := range encodings {
-		// 将 encoding 字符串拆分为多个编码
-		for _, enc := range strings.Split(encoding, ",") {
-			// 去除空格并检查是否为 gzip
-			if strings.TrimSpace(enc) == "gzip" {
-				return true
-			}
-		}
-	}
-	return false
-}
-*/