Major browsers (Chrome, Firefox...) just removed data URLs in SVG elements, resulting in a difference betweend dev and prod

[hugoattal]

Describe the bug

Article: https://developer.chrome.com/blog/migrate-way-from-data-urls-in-svg-use?hl=en
Chrome status: https://chromestatus.com/feature/5128825141198848

Vite seems to inline SVGs when building a project.
But data URLs in SVG don't work anymore (cf article).

So there's a difference between dev (when there's no inlining, everything work) and prod (when it's inlined, it does not display anything)

Reproduction

https://stackblitz.com/edit/vitejs-vite-meuqwh?file=main.js&terminal=dev

Steps to reproduce

pnpm run dev

The rendered SVG element looks like this:

<use href="/src/vite.svg#logo"></use>

=> Works as intended

---

pnpm run build && pnpx serve dist

The rendered SVG element looks like this:

<use href="data:image/svg+xml,%3csvg%20xmlns ... 13Z'%3e%3c/path%3e%3c/g%3e%3c/svg%3e#logo"></use>

=> Does not work

System Info

Firefox last version (122.0b3) and Chrome last version (122.0.6182.0)

Used Package Manager

pnpm

Logs

No response

Validations

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• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Make sure this is a Vite issue and not a framework-specific issue. For example, if it's a Vue SFC related bug, it should likely be reported to vuejs/core instead.
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• The provided reproduction is a minimal reproducible example of the bug.

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Start a new pull request in StackBlitz Codeflow.

• vitejs-vite-meuqwh (Open reproduction)

[hugoattal]

For anyone stumbling upon this issue, here's an easy way to solve it in the meantime:

Before:

import './style.css';
import viteLogo from '/src/vite.svg';

document.querySelector('#app').innerHTML = `
  <div>
  <svg width="256px" height="256px">
    <use href="${viteLogo}#logo"></use>
  </svg>
  </div>
`;

After:

import './style.css';
import viteLogo from '/src/vite.svg?raw';

document.querySelector('#app').innerHTML = `
  <div>
  <div style="display:none;">${viteLogo}</div>
  <svg width="256px" height="256px">
    <use href="#logo"></use>
  </svg>
  </div>
`;

[hugoattal]

I'm willing to tackle the issue, but I'm not exactly sure how to proceed...

There's already this logic:

vite/packages/vite/src/node/plugins/asset.ts

Lines 350 to 351 in 56ae92c

	// Don't inline SVG with fragments, as they are meant to be reused
	(!(file.endsWith('.svg') && id.includes('#')) &&

But fragments can be added after importing the file (just like in my example)

I think there can be two solutions:

• Detect if the SVG is used in an IMG or an SVG use tag => this might be very unreliable
• Add something like "?file" to force the SVG not be inlined. (or add "?inline" to toggle inlining in SVG)

The second solution does not fix the problem of difference between dev and prod, though.
So we could have the same logic of inlining in the dev mode, but that might break reactivity on SVGs...

If we default to inline, the problem can be undetected before build.
If we default to file, build will be good by default, but this will change the behavior of what vite already does.

Here's how this could be solved:

 // Don't inline SVG with fragments, as they are meant to be reused 
 (!(file.endsWith('.svg') && (id.includes('#') || id.endsWith('?file'))) && 

cf hugoattal@0e9b636

Wdyt?

[sapphi-red]

TIL data URLs now disallowed in <use>.
There's a PR that adds a option to exclude some files to be inlined: #15366
I guess that PR will work for this case as well.

[hugoattal]

TIL data URLs now disallowed in <use>.

You can't imagine the headache to find out why my icons were not displayed anymore, a browser update was at the veeeeery bottom of my list 😅...

There's a PR that adds a option to exclude some files to be inlined: #15366

I think the ?file suffix would be a bit more practical, but I'm okay with the solution of this PR 🙂

[Terbiy]

Hello! Also faced the issue recently. Is there any news on the topic?

[aloayzab88]

Also faced this problem recently.
assetsInlineLimit: 0
fix the issue but... well you would not inline anything.