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getCookies() throws error when cookie header is an empty string #7320
Description
Describe the bug
Steps to Reproduce
import { getCookies } from 'jsr:@std/http@1.1.3/cookie';
const headers = new Headers({ cookie: '' });
getCookies(headers); //fails- Execute the file using Deno (deno run demo.ts).
- See error.
Expected behavior
getCookies() should gracefully handle empty cookie strings and return an empty object {} instead of throwing an exception.
Currently only null value is being checked.
Line 266 in ca58f94
Actual behavior
error: Uncaught (in promise) SyntaxError: Cookie cannot start with '='
throw new SyntaxError("Cookie cannot start with '='");
error thrown at
Line 271 in ca58f94
Environment
- OS: Linux
- deno version: 2.9.2
- std version: 1.1.3
Activity
[-]`getCookies()` throws SyntaxError when Headers contains an empty cookie string (cookie: '')[/-][+]`getCookies()` throws error when cookie header is an empty string [/+]dennisimoo commentedon Sep 23, 2026
I’ll add a focused fix and regression tests for empty and whitespace-only headers, while keeping malformed nonempty cookies rejected. AI-assisted with Codex.