The limit that fires first is the servlet container's WebSocket buffer, not Spring's
messageSizeLimit. 'body' below is the length of the JSON string field; the STOMP frame
carries about 90 bytes of headers on top of it.

=== container buffer: Tomcat default (8192, see /diag) ===
  8 KB body -> delivered, body length 8192
 16 KB body -> delivered, body length 16384
 60 KB body -> NOT delivered, connection dropped
largest body delivered   : 16459 bytes
smallest body rejected   : 16522 bytes

=== container buffer set to 16384 ===
largest body delivered   : 16446 bytes
smallest body rejected   : 16496 bytes
=== container buffer set to 32768 ===
largest body delivered   : 32615 bytes
smallest body rejected   : 32665 bytes
=== container buffer set to 65536 ===
largest body delivered   : 65350 bytes
smallest body rejected   : 65400 bytes

=== bigframes profile: container buffer 256 KB, Spring limit 64 KB ===
 16 KB body -> delivered, body length 16384
 60 KB body -> delivered, body length 61440
desti..], byteCount=82068, last=true] in session 1655473b-76fe-4489-99d6-e3f8200b41b4. Sending STOMP ERROR to client.
org.springframework.messaging.simp.stomp.StompConversionException: The configured STOMP buffer size limit of 65536 bytes has been exceeded
 80 KB body -> NOT delivered, connection dropped
desti..], byteCount=204949, last=true] in session 8dcce90c-48db-43a5-8d32-659da1fe32d8. Sending STOMP ERROR to client.
org.springframework.messaging.simp.stomp.StompConversionException: The configured STOMP buffer size limit of 65536 bytes has been exceeded
200 KB body -> NOT delivered, connection dropped

Spring's own limit, once the container is out of the way:
org.springframework.messaging.simp.stomp.StompConversionException: The configured STOMP buffer size limit of 65536 bytes has been exceeded

"ws.container.defaultMaxTextMessageBufferSize":262144
"ws.container.defaultMaxTextMessageBufferSize":8192