On the off-label benefits of No-Vary-Search

While working on HTTP caching, a refresher , I learned about a recent development that immediately piqued my interest. Authored by Domenic Denicola and Jeremy Roman at Google, the No-Vary-Search HTTP response header field proposal enables a server to declare that some aspects of the URL ’s query string are irrelevant for the purposes of caching. Its syntax can express that the order of parameters…