woltapp/blurhash

BlurHash does not work when `privacy.resistFingerprinting` is enabled

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#237 opened on Mar 29, 2023

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Description

In Firefox, when the option privacy.resistFingerprinting is enabled, BlutHash stops working. In the dev console, the following message is printed:

Blocked https://blurha.sh/ from extracting canvas data because no user input was detected

The reason I've enabled privacy.resistFingerprinting in about:config is to make it harder for advertisers to track myself. To see fingerprinting in action, visit fingerprint.com in normal and privacy mode, and compare the generated visitor id.

Contributor guide

Research direction
Inspect the error 'Blocked from extracting canvas data because no user input was detected'. Research how to register a user interaction event (e.g., click or touch) before calling blurHash encoding. Consider using the 'User Activation' API or ensuring the encoder is called within a user gesture handler.
Tech stack
javascript
Domain
frontend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
GitJavaScript
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70