8000 `Error: failed with HTTP 404` when opening in playground in local development environment · Issue #12621 · mdn/yari · GitHub
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Error: failed with HTTP 404 when opening in playground in local development environment #12621

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codersjj opened this issue Feb 17, 2025 · 0 comments
Open
3 tasks done

Error: failed with HTTP 404 when opening in playground in local development environment #12621

codersjj opened this issue Feb 17, 2025 · 0 commen 8D21 ts
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needs triage Triage needed by staff and/or partners. Automatically applied when an issue is opened.

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@codersjj
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Summary

When using the EmbedLiveSample macro, the preview function works fine. However, after clicking the Play button, the page fails to load and displays the error message: \"Error: failed with HTTP 404\".

URL

For example: http://localhost:5042/en-US/docs/Web/SVG/Tutorial/SVG_fonts

Reproduction steps

  1. Add the following code to any Markdown page:

    ```html
<h1>Title</h1>
```

This renders as shown below:

{{EmbedLiveSample("title", "100", "30px")}}

  2. Start the content project:

    Run yarn start to start the local preview.

  3. Access the modified page:

    Open the page where you added the code.

  4. Click the Play button:

    Click the Play button associated with the EmbedLiveSample.

After performing these steps, you may encounter a page load failure accompanied by the error message: \"Error: failed with HTTP 404\".

Expected behavior

The code on the left executes and renders correctly on the right.

Actual behavior

The page fails to load and displays the error message: \"Error: failed with HTTP 404\".

Device

Desktop

Browser

Chrome

Browser version

Stable

Operating system

Windows

Screenshot

Image

Image

Anything else?

No response

Validations
@github-actions github-actions bot added the needs triage Triage needed by staff and/or partners. Automatically applied when an issue is opened. label Feb 17, 2025
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