Comments (3)
Hey everyone! I wasn't able to reproduce this issue last week, turns out that nvm
was playing with me 😅
I was however able to reproduce it today, and it turns out that the MessageEvent
class does not pass back a required data
property, according the MDN: https://developer.mozilla.org/en-US/docs/Web/API/MessageEvent/data
I'm quite positive that this is an issue in NodeJS
from surrealdb.js.
from surrealdb.js.
I have the same issue.
This is likely not a bug in surrealdb.js, but rather a bug in undici or a non-compliance with the WebSocket specification (RFC 6455) by other WebSocket clients.
The WebSocket class, which was added to the global namespace without a flag in Node.js v22, is implemented within undici and seems to behave slightly differently from other WebSocket clients (Deno and ws).
Specifically, there is a discrepancy in how chunked data sent from the WebSocket server is interpreted. undici does not reset the opcode unless chunked data containing a payload is sent. This means that when a ping response (<Buffer 89 00>) is received from the WebSocket server, undici remembers that the opcode is 9 (i.e. "Ping Frame") and ultimately drops the payload of subsequent chunked data. This ping communication is performed by the WebSocket to maintain the connection, independently of surrealdb.js's Pinger.
To resolve this issue, it may be necessary to make changes to the implementation of undici. I'm using Node.js v22.1.0 and have checked the behavior with undici v6.13.0, but I have also obtained the same results with the latest version, v6.16.0.
However, the WebSocket specification is quite complex, and I am not entirely sure if this is a bug in undici. It is also possible that undici's WebSocket implementation is correct and other implementations are not compliant with the specification.
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