pub const PRIORITY_UPDATE_MAX_VALUE: usize = 1024;Expand description
Maximum length of the priority_field_value portion of a PRIORITY_UPDATE
frame (RFC 9218 §7.1). The field is a Structured Field Item (RFC 8941):
ASCII-only, intended for compact dictionary payloads such as u=3, i.
1024 bytes mirrors nghttp2’s NGHTTP2_MAX_PRIORITY_VALUE_LEN and the
upper-bound the h2 Rust crate enforces, an order of magnitude tighter
than SETTINGS_MAX_FRAME_SIZE — the attacker is denied a per-frame
16 KiB allocation primitive sized in single TCP segments.