private boolean checkContentEncoding(String contentEncoding) {
        return contentEncoding == null ||
                contentEncoding.equalsIgnoreCase("identity") ||
                contentEncoding.equalsIgnoreCase("gzip");
    }
Returns true if the body in question probably contains human readable text. Uses a small sample
of code points to detect unicode control characters commonly used in binary file signatures.
pandora-core/src/main/java/tech/linjiang/pandora/network/OkHttpInterceptor.java