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It is incorrect to "normalize" // in HTTP URL paths

🚨 URL Double Slash Debate



The normalization of double slashes (//) in HTTP URL paths is a nuanced issue, with some arguing it can lead to security vulnerabilities and others claiming it's harmless. In practice, consistently handling double slashes helps prevent path traversal attacks and ensures predictable URL resolution. Proper handling maintains the integrity and security of web applications.

8:05 am, April 18, 2026

guid

https://news.ycombinator.com/item?id=47813454

source_url

https://runxiyu.org/comp/doubleslash/

author_name

pabs3

id: 1943
uid: ypqTN
insdate: 2026-04-18 08:05:17
title: It is incorrect to "normalize" // in HTTP URL paths
additional:

🚨 URL Double Slash Debate



The normalization of double slashes (//) in HTTP URL paths is a nuanced issue, with some arguing it can lead to security vulnerabilities and others claiming it's harmless. In practice, consistently handling double slashes helps prevent path traversal attacks and ensures predictable URL resolution. Proper handling maintains the integrity and security of web applications.
category: Hacker News
md5:
guid: https://news.ycombinator.com/item?id=47813454
source_url: https://runxiyu.org/comp/doubleslash/
updated:
image:
author_name: pabs3
author_link:
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