processing/p5.js

[p5.js 2.0 Beta Bug Report]: Some google fonts don't load

Open

#7,486 opened on Jan 22, 2025

View on GitHub
 (22 comments) (0 reactions) (0 assignees)JavaScript (20,784 stars) (3,178 forks)batch import
Area:TypographyHelp Wantedp5.js 2.0+

Description

Most appropriate sub-area of p5.js?

  • Accessibility
  • Color
  • Core/Environment/Rendering
  • Data
  • DOM
  • Events
  • Image
  • IO
  • Math
  • Typography
  • Utilities
  • WebGL
  • Build process
  • Unit testing
  • Internationalization
  • Friendly errors
  • Other (specify if possible)

p5.js version

2.0 beta 1

Web browser and version

Firefox

Operating system

MacOS

Steps to reproduce this

I'm not sure what the difference is, but I was playing around with loading google fonts, and I have an example of one that works and one that doesn't:

let font

async function setup() {
  createCanvas(400, 400);
  
  // ok
  // font = await loadFont('https://fonts.googleapis.com/css2?family=Sniglet:wght@400;800&display=swap')
  
  // not ok?
  font = await loadFont('https://fonts.googleapis.com/css2?family=Jersey+10&display=swap')
}

function draw() {
  background(220);
  textFont(font)
  textSize(20)
  text('test', 50, 50)
}

Live: https://editor.p5js.org/davepagurek/sketches/c8__rjh8_

Anyone have any ideas what Jersey 10 does that Sniglet doesn't that would the error Failed to create FontFace for "Jersey 10" to be thrown? Maybe the number in the name?

Contributor guide

Tech stack
javascriptcss
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.
half day
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.
mostly clear
Prerequisites
Basic p5.js usageUnderstanding of CSS font faceDebugging JavaScript in browser
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60
Research direction
Investigate the p5.js font loading implementation in the typography module (likely `src/typography/loadFont.js`). The issue suggests that font names with numbers (like 'Jersey 10') cause a failure in creating FontFace. Compare the successful Sniglet font request with Jersey 10 to identify where the parsing or API call fails. Check if the URL encoding or font family name validation is causing the error.