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ERR_HTTP2_HEADERS_AFTER_RESPOND

http2 headers after respond

What does this code mean?

Code ERR_HTTP2_HEADERS_AFTER_RESPOND · An issue reported by Node.js.

Official explanation · Original text

Additional headers were specified after an HTTP/2 response was initiated.

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