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Node.jsNode.jsError code

ERR_HTTP_INVALID_HEADER_VALUE

http invalid header value

What does this code mean?

Code ERR_HTTP_INVALID_HEADER_VALUE · An issue reported by Node.js.

Official explanation · Original text

An invalid HTTP header value was specified.

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