The following enhancements for web load testing on protocol-level have been implemented:
Silk Performer now supports Brotli compression for protocol-level HTTP/HTML scripts. Brotli compression is an addition to other compression algorithms such as gzip.
Many modern web applications use HTTP/2, however, negotiation for NTLM and Kerberos authentication is not defined for the HTTP/2 protocol. Thus, browsers are using various fallback strategies to HTTP/1.x to authenticate a user. Silk Performer 21.0 implements the fallback behavior of Google Chrome.