Why Is My Chrome DevTools Showing a 404 Error for 'jquery-1.10.2.min.map'?

jQuery's Mysterious 404: Uncovering the .map File Discrepancy

Encountering a 404 "Not Found" error for the file "jquery-1.10.2.min.map" in your Chrome DevTools can be puzzling.

What's the Source of this Issue?

This particular .map file is a source map linked to the minified jQuery file. It's used by browsers like Chrome to map minified code back to its original source for easier debugging.

Is It a Problem for My Website Visitors?

Rest assured that this 404 error only affects you via DevTools. Your website visitors won't experience this error.

Fixing the Issue

• Get the File:
  Locate the download link for the map file (.map) on the jQuery download page. Download the file and place it in the same directory as your minified jQuery file.
• Disable Sourcemaps:
  If you prefer not to retrieve the map file, you can disable JavaScript source maps in Chrome DevTools settings. Navigate to the settings cog icon and uncheck the "Enable JavaScript source maps" option.

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