[Bug]: Theme assets /assets/* returns 404

[wiebekaai]

Please confirm that you have:

• Searched existing issues to see if your issue is a duplicate. (If you’ve found a duplicate issue, feel free to add additional information in a comment on it.)
• Reproduced the issue in the latest CLI version.

In which of these areas are you experiencing a problem?

Theme

Expected behavior

We use Vite to serve assets in development and when an asset is referenced (such as url('Inter-Regular.woff2') in CSS), we proxy the http://localhost:5173/Inter-Regular.woff2 request to http://127.0.0.1:9292/assets/Inter-Regular.woff2. With --legacy enabled these return the files.

Actual behavior

Returns a 404.

Verbose output

GET /assets/Inter-Regular.woff2
2024-10-09T08:31:02.851Z: → Rendering https://[...].com/assets/Inter-Regular.woff2?_fd=0&pb=0 (with )...
2024-10-09T08:31:03.148Z: Request to https://[...].com/assets/Inter-Regular.woff2?_fd=0&pb=0 completed in 297 ms
With response headers:

• cache-control: no-cache, no-store
• content-type: font/woff2; charset=utf-8
• server-timing: processing;dur=83;desc="gc:49", db;dur=10, parse;dur=1, render;dur=5, asn;desc="50266", edge;desc="AMS", country;desc="NL", theme;desc="142490042499", pageType;desc="404", servedBy;desc="hq2k", requestID;desc="f4ee6045-cc21-4f63-891c-e17ddefa5ed1-1728462662", cfRequestDuration;dur=262.999773
• x-request-id: f4ee6045-cc21-4f63-891c-e17ddefa5ed1-1728462662

2024-10-09T08:31:03.149Z: ← 404 (request_id: f4ee6045-cc21-4f63-891c-e17ddefa5ed1-1728462662)

Reproduction steps

1. Add an asset to the assets/ directory
2. Start shopify theme dev
3. Visit the asset, for example http://127.0.0.1:9292/assets/Inter-Regular.woff2

Operating System

MacOS 14.6.1 (23G93)

Shopify CLI version (check your project's package.json if you're not sure)

3.68.0

Shell

zsh

Node version (run node -v if you're not sure)

v22.6.0

What language and version are you using in your application?

No response

[mgmanzella]

👋 thanks for reporting! i can reproduce this issue, it seems to be an unsupported feature in the new typescript only implementation of the dev server. please use the --legacy flag while we fix this. thanks again 🙏