Error encountered: Resource URL request failed with a status 404 due to a source map error

Encountering an issue:

Concerning HTML:

<link rel="stylesheet" href="https://www.domain123.com/wp-content/themes/gogo-theme/css/bootstrap.min.css">

Source map error: Error: request failed with status 404 Resource URL: Source Map URL: bootstrap.min.css.map

Upon pasting the URL for bootstrap.min.css into the browser, the file is accessible. What could be triggering this error? How can it be resolved?

Answer №1

The error message you're seeing is not a critical issue, it simply means that the sourcemap (.map file) linked to the .js or .css resource could not be located (although the js or css files are still loading properly).

For instance, in , the final line shows:

//# sourceMappingURL=bootstrap.min.js.map

This signals that there should be a corresponding sourcemap file at

The browser will attempt to fetch this additional file automatically (though it's not mandatory, it can be helpful for debugging or viewing the original code from minified versions).

In this scenario, only the main file (.css) might have been uploaded to the website without the associated .css.map file. You'll need to either add the missing file to the site or remove the last line from the code.

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