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ERR_HTTP2_TRAILERS_ALREADY_SENT

http2 trailers already sent

What does this code mean?

Code ERR_HTTP2_TRAILERS_ALREADY_SENT · An issue reported by Node.js.

Official explanation · Original text

Trailing headers have already been sent on the Http2Stream.

Troubleshooting and diagnostic links

First check that the document's product, version, and environment match your situation.

Source and terms of use

Errors | Node.js v26.13.1 Documentation ↗

Creator: Node.js contributors; Joyent, Inc. and other Node contributors
License: MIT License (Node.js documentation)
Checked on: 2026-11-12

Modifications: English prose extracted; whitespace normalized; Korean context and classified official links added. Python code examples not redistributed.

Source details · Original licenses and notices