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fix(gateway): increase WebSocket max payload to 5 MB for image uploads (#14486)

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* fix(gateway): increase WebSocket max payload to 5 MB for image uploads

The 512 KB limit was too small for base64-encoded images — a 400 KB
image becomes ~532 KB after encoding, exceeding the limit and closing
the connection with code 1006.

Bump MAX_PAYLOAD_BYTES to 5 MB and MAX_BUFFERED_BYTES to 8 MB to
support standard image uploads via webchat.

Closes #14400

* fix: align gateway WS limits with 5MB image uploads (#14486) (thanks @0xRaini)

* docs: fix changelog conflict for #14486

---------

Co-authored-by: 0xRaini <0xRaini@users.noreply.github.com>
Co-authored-by: Peter Steinberger <steipete@gmail.com>
This commit is contained in:
0xRain
2026-02-13 00:48:49 +08:00
committed by GitHub
parent a2ddcdadeb
commit 626a1d0699
4 changed files with 6 additions and 5 deletions
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4
src/slack/monitor/message-handler/prepare.sender-prefix.test.ts
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@@ -44,7 +44,7 @@ describe("prepareSlackMessage sender prefix", () => {
ackReactionScope: "off",
mediaMaxBytes: 1000,
removeAckAfterReply: false,
logger: { info: vi.fn() },
logger: { info: vi.fn(), warn: vi.fn() },
markMessageSeen: () => false,
shouldDropMismatchedSlackEvent: () => false,
resolveSlackSystemEventSessionKey: () => "agent:main:slack:channel:c1",
@@ -123,7 +123,7 @@ describe("prepareSlackMessage sender prefix", () => {
ackReactionScope: "off",
mediaMaxBytes: 1000,
removeAckAfterReply: false,
logger: { info: vi.fn() },
logger: { info: vi.fn(), warn: vi.fn() },
markMessageSeen: () => false,
shouldDropMismatchedSlackEvent: () => false,
resolveSlackSystemEventSessionKey: () => "agent:main:slack:channel:c1",