The key embeds the body verbatim (see deferredKey), and the key is a SQLite PRIMARY KEY, so an
unbounded body would put an unbounded value in an index. 8 KiB is far above any verification
payload -- a reCAPTCHA siteverify POST is about 200 bytes -- and far below the 2,199,995-byte
Durable Object record ceiling.
The largest body that may be deferred.
The key embeds the body verbatim (see
deferredKey), and the key is a SQLite PRIMARY KEY, so an unbounded body would put an unbounded value in an index. 8 KiB is far above any verification payload -- a reCAPTCHAsiteverifyPOST is about 200 bytes -- and far below the 2,199,995-byte Durable Object record ceiling.