Client-Hints

Add HTTP Client-Hint headers to outgoing requests

What is Client-Hints?

"Client-Hints" is a Chrome extension that allows the addition of HTTP Client-Hint headers to outgoing requests. It helps browsers communicate screen details to servers for optimized resource delivery, especially images.

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Stats

By: Andy Davies

View on Chrome Web Store

Users: 51

Rating: 2.00 (3)

Version: 0.3.1 (Last updated: 2013-11-02)

Creation date: 2013-11-02

Risk impact: High risk impact

Risk likelihood: Low risk likelihood

Manifest version: 2

Permissions:

webRequest
webRequestBlocking
http://*/*
https://*/*

Size: 22.33K

URLs: Website

Stats date:

Chrome-Stats Rank

# 76615 ▼ 241

Other rankings

#7786 in Developer Tools ▼ 19 #174 in header keyword 45

Other platforms

Not available on Firefox

Not available on Edge

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Summary

Analyze keywords

Extension to allow Client-Hints header to be set for testing / experimentation purposes.

Client-Hints (CH-*:) HTTP Header is proposed as a way of allowing browsers to communicate details of screen height, width and display pixel ratio to servers so that the server can return resources, especially images, that are optimised.

See https://github.com/igrigorik/http-client-hints for more on the Client-Hints proposal

Source code for extension can be found on GitHub - https://github.com/andydavies/Client-Hints- pull requests welcomed.

User reviews

Sends only the DPR (device pixel ratio) hint, which is deprecated, and none of the other client hints, such as user-agent hints or network hints. Additionally, causes cross-origin CORS errors on subdomains (which aren't actually cross-origin).

Galen Wright-Watson, 2022-07-13

Helpful for checking out Client Hints concept. Seems to work fine for me

Ed Thurgood, 2013-11-12

It doesn't work, so not sure why it is posted as an extension?

Richard Persson, 2013-10-02

View all user reviews

Safety

Risk impact

Client-Hints is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this extension. Review carefully before installing. We recommend that you only install Client-Hints if you trust the publisher.