# Why website display stripes?
**URL:** https://forum.torproject.org/t/why-website-display-stripes/18281
**Category:** Tor Browser Desktop
**Tags:** fingerprinting
**Created:** [April 8, 2025, 8:02am UTC](https://forum.torproject.org/t/why-website-display-stripes/18281 "2025-04-08T08:02:55Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@anon22764326](https://forum.torproject.org/u/anon22764326)
#### Post date: [April 8, 2025, 8:02am UTC](https://forum.torproject.org/t/why-website-display-stripes/18281/1 "2025-04-08T08:02:55Z")
Look at this image, there are a lot of green stripes in the web page display. Why does this happen? How to solve it?
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### Author:  [@thorin](https://forum.torproject.org/u/thorin)
#### Post date: [April 8, 2025, 9:47am UTC](https://forum.torproject.org/t/why-website-display-stripes/18281/2 "2025-04-08T09:47:04Z")
It’s canvas protection. The site is using an overlay (or background?) which uses canvas. Canvas is randomized in such a way that the result is a `wavy` pattern - at larger sizes it looks like stripes.
See [canvas spoof fingerprinting](https://arkenfox.github.io/TZP/tests/canvasnoise.html)
You can add a site exception and then refresh the page (on TB this exception is session only) - see [3.3 Overrides [To RFP or Not] · arkenfox/user.js Wiki · GitHub](https://github.com/arkenfox/user.js/wiki/3.3-Overrides-%5BTo-RFP-or-Not%5D#-rfp) for instructions
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### Author:  [@system](https://forum.torproject.org/u/system)
#### Post date: [April 12, 2025, 5:34am UTC](https://forum.torproject.org/t/why-website-display-stripes/18281/4 "2025-04-12T05:34:57Z")
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