Coding⏱️ 3 min read📅 2026-06-03

How to Fix: Why is @font-face throwing a 404 error on woff files?

404 error when using @font-face with woff files in Firefox and Chrome, but not in IE.

Quick Answer: Check the font file path and URL for typos or incorrect encoding. Ensure the font file is correctly registered on the server.

📋 Table of Contents

  1. 🔍 Why This Happens
  2. ✅ Best Solutions to Fix It
  3. 💡 Conclusion

The error '@font-face' throwing a 404 error on woff files affects browsers like Firefox and Chrome, but not Internet Explorer.

This issue can be frustrating as it prevents the correct display of fonts on these browsers.

🔍 Why This Happens

  • The primary cause of this error is related to the way web fonts are loaded. Specifically, the issue arises when the browser is unable to find the font file due to a mismatch in the file extension or incorrect URL.
  • Another possible reason for this error is that some browsers may not support the WOFF2 format used by the Fontsquirrel tool.

✅ Best Solutions to Fix It

Optimizing Font File URLs

  1. Step 1: Ensure that the font files are correctly named and have the correct file extension (.woff or .woff2).
  2. Step 2: Verify that the font files are located at the root of the website, as specified in the @font-face declaration.
  3. Step 3: Check that the URL for the font file is correctly defined and matches the actual location of the file on the server.

Using a Font Delivery Network (FDN)

  1. Step 1: Consider using a FDN service to host your font files, as this can help improve loading times and reduce errors.
  2. Step 2: Configure the FDN to serve the correct version of the font file (.woff or .woff2) based on the browser's capabilities.

💡 Conclusion

By optimizing font file URLs and considering the use of a Font Delivery Network (FDN), you should be able to resolve the '@font-face' error throwing a 404 error on woff files in Firefox and Chrome.

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