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[Firefox] SVGResource cannot load SVG without explicitly specified width and height

See original GitHub issue

Current Behavior

Not sure if this is a bug or feature.

While working on my project with Pixi, some of my SVG fails to load in Firefox and reported: The SVG image must have width and height defined (in pixels), canvas API needs them.

My SVG has viewBox specification, which means it should take all available space and scale accordingly. (Well, Scalable Vector Graphics, it is in the name)

Well, instead of fixing all my SVG, which is provided by designer with their tool that generate the same format. I would like to make Pixi work with them.

Expected Behavior

Pixi should load SVG without explicitly specified width/height (with only viewBox specification). This is an issue tracked here 10 years ago. User webrant has provided an workaround, and I made a slight modification to use the viewBox in this jsfiddle as proof of concept for image with only viewBox specification.

Pixi could detect missing width/height from SVG and fall back to use viewBox if available.

Possible Solution

Update the SVGResource’s error handler. Instead of reporting 0 and abort, fallback to parse the base64 and get viewBox If viewBox is also not available, then abort. https://github.com/pixijs/pixijs/blob/bb47818dfa2c388f8adb6dbb3a8f32fdfb1e72a0/packages/core/src/textures/resources/SVGResource.ts#L158-L175

Steps to Reproduce

Load any SVG with only viewBox in Firefox

Environment

pixi.js version: 6.1.0
Browser & Version: _e.g. Chrome 94 and FireFox91.2.0esr
OS & Version: _e.g. Windows 10 20H2

Issue Analytics

State:
Created 2 years ago
Comments:7 (6 by maintainers)

Top GitHub Comments

1reaction

zero41120commented, Apr 20, 2022

My team needs the SVG fixed, so I made this CLI that reads SVG’s ViewBox and writes them as width and height:

https://www.npmjs.com/package/@zero41120/svg-dimension-from-viewbox

0reactions

Zyiecommented, Jul 1, 2022

Closing this ticket for now

As mentioned in #7878 we don’t think Pixi should be handling invalid data in this case, especially when it adds a lot of complexity to the SVGResource

Please use the solution provided above as a workaround

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