Instance Propertyvapor 4.114.1Vapor->NIOHTTP1

    immutable

    Indicates that the response body will not change over time.

    HTTPHeaderCacheControl.swift:54
    var immutable: Bool
    Mangled symbol
    s8NIOHTTP111HTTPHeadersV5VaporE12CacheControlV9immutableSbvp What are these?
    FNV24 hash
    1F49E

    The resource, if unexpired, is unchanged on the server and therefore the client should not send a conditional revalidation for it (e.g. If-None-Match or If-Modified-Since) to check for updates, even when the user explicitly refreshes the page. Clients that aren’t aware of this extension must ignore them as per the HTTP specification. In Firefox, immutable is only honored on https:// transactions. For more information, see also this blog post.