[Feature Request] Added white-noise for Canvas renderings...

General discussion about Slimjet, or other issues related to web browser in general.
Locked
SnakeByte
Posts: 8
Joined: Mon Nov 23, 2015 10:40 pm

[Feature Request] Added white-noise for Canvas renderings...

Post by SnakeByte »

Some tracking websites generate graphics either with HTML 5 Canvas, or through WebGL, and then retrieve that information to uniquely identify browsers. (Apparently each browser + computer hardware generated unique images due to differences in compression algorithms, etc)

Go here to read more and have your browser tested:
https://www.browserleaks.com/canvas
or
https://panopticlick.eff.org

Please consider modifying the rendering engine to add some minimal amount of noise to the graphics so that it will break this fingerprinting trick. Possibly add white-listing for sites that legitimately need this functionality.

User avatar
oftentired
Posts: 1327
Joined: Tue May 13, 2014 3:14 am

Re: [Feature Request] Added white-noise for Canvas rendering

Post by oftentired »

I think, essentially, your request has already been implemented in the Security section of Settings.

Slimjet includes an option "Disable reading from HTML5 canvas" in the security section of the settings page. If you turn on this option, javascript wouldn't be able to export any pixels from the canvas and the server wouldn't be able to get any unique fingerprint information.

After disabling HTML5 canvas users who experience problems with every day use websites that you are confident intend you no harm, such as a gaming website, should use the "Exceptions" feature to enable canvas on the problem website.
For those of you who wear aluminum foil hats, the voices lie, don't believe them!

Running 32 Bit SJ on Win 7 Pro

SnakeByte
Posts: 8
Joined: Mon Nov 23, 2015 10:40 pm

Re: [Feature Request] Added white-noise for Canvas rendering

Post by SnakeByte »

Thanks Oftentired, you are correct.

Man I really love this browser. Wish there was an OSX / IOS version.

Locked