no-cache: you MAY store this, but you MUST revalidate with the server before using it
must-revalidate: you MUST revalidate with the server before using this after it expires
They overlap but address different things; no-cache is for cacheability while must-revalidate is for validity. I don't think either of them are named very well.
must-revalidate: you MUST revalidate with the server before using this after it expires
They overlap but address different things; no-cache is for cacheability while must-revalidate is for validity. I don't think either of them are named very well.